From 1b6c0cbfb66dd6827c4902bf340d3e53e710097a Mon Sep 17 00:00:00 2001
From: Tim Pope <code@tpope.net>
Date: Sat, 21 Apr 2012 10:11:02 -0400
Subject: [PATCH] Improve cmd.exe shell escaping

---
 plugin/fugitive.vim | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/plugin/fugitive.vim b/plugin/fugitive.vim
index fe7d96e..aa087d9 100644
--- a/plugin/fugitive.vim
+++ b/plugin/fugitive.vim
@@ -29,8 +29,8 @@ endfunction
 function! s:shellesc(arg) abort
   if a:arg =~ '^[A-Za-z0-9_/.-]\+$'
     return a:arg
-  elseif &shell =~# 'cmd' && a:arg !~# '"'
-    return '"'.a:arg.'"'
+  elseif &shell =~# 'cmd'
+    return '"'.s:gsub(s:gsub(a:arg, '"', '""'), '\%', '"%"').'"'
   else
     return shellescape(a:arg)
   endif