Drop unnecessary shebang lines.

All these files should be sourced, not executed; and Debian's lintian complains:

W: zsh-syntax-highlighting: script-not-executable usr/share/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh

highlighters/brackets/brackets-highlighter.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2010-2011 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/brackets/test-data/mismatch-patentheses.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/brackets/test-data/nested-parentheses.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/brackets/test-data/quoted-patentheses.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/brackets/test-data/simple-parentheses.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/brackets/test-data/unclosed-patentheses.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/brackets/test-data/unclosed-patentheses2.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/cursor/cursor-highlighter.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2010-2011 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/line/line-highlighter.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2010-2011 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/alias.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/arithmetic-evaluation.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/assign-append.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/assign.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/back-quoted-argument.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/backslash-continuation.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/commandseparator.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/dollar-quoted.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/dollar-quoted2.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/dollar-quoted3.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/double-hyphen-option.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/double-quoted.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/double-quoted2.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2010-2011 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/double-quoted3.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2010-2011 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/empty-command.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/function.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/glob.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/hashed-command.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/history-expansion.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/history-expansion2.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/multiline-string.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/multiline-string2.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/multiple-redirections.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2010-2011 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/noglob1.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/noglob2.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/path-space- .zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2010-2011 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/path-tilde-home.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2010-2011 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/path-tilde-named.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/path.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2010-2011 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/path_prefix.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/prefix-redirection.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/redirection.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/reserved-word.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/simple-command.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2010-2011 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/simple-redirection.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/sudo-command.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/tilde-command-word.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/unbackslash.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/unknown-command.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2010-2011 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/main/test-data/vanilla-newline.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2015 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/pattern/pattern-highlighter.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2010-2011 zsh-syntax-highlighting contributors
 # All rights reserved.

highlighters/root/root-highlighter.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2010-2011 zsh-syntax-highlighting contributors
 # All rights reserved.

zsh-syntax-highlighting.zsh

@@ -1,4 +1,3 @@
-#!/usr/bin/env zsh
 # -------------------------------------------------------------------------------------------------
 # Copyright (c) 2010-2015 zsh-syntax-highlighting contributors
 # All rights reserved.