Checker stylus/stylint: version 1.5.7 breaks errorformat.

doc/syntastic-checkers.txt

@@ -6012,6 +6012,8 @@ the project's page at GitHub for details:
 
     https://github.com/rossPatton/stylint
 
+Syntastic doesn't support "Stylint" version 1.5.7 or later.
+
 Checker options~
 
 This checker is initialised using the "makeprgBuild()" function and thus it

plugin/syntastic.vim

@@ -19,7 +19,7 @@ if has('reltime')
     lockvar! g:_SYNTASTIC_START
 endif
 
-let g:_SYNTASTIC_VERSION = '3.8.0-4'
+let g:_SYNTASTIC_VERSION = '3.8.0-5'
 lockvar g:_SYNTASTIC_VERSION
 
 " Sanity checks {{{1

syntax_checkers/stylus/stylint.vim

@@ -18,6 +18,14 @@ let g:loaded_syntastic_stylus_stylint_checker = 1
 let s:save_cpo = &cpo
 set cpo&vim
 
+function! SyntaxCheckers_stylus_stylint_IsAvailable() dict
+    if !executable(self.getExec())
+        return 0
+    endif
+    " XXX versions 1.5.7 and later are not supported
+    return !syntastic#util#versionIsAtLeast(self.getVersion(), [1, 5, 7])
+endfunction
+
 function! SyntaxCheckers_stylus_stylint_GetLocList() dict
     let makeprg = self.makeprgBuild({})