Fixed vim and zsh

vim/plugins/vim-airline/autoload/airline/extensions/syntastic.vim

@@ -0,0 +1,21 @@
+" MIT License. Copyright (c) 2013-2016 Bailey Ling.
+" vim: et ts=2 sts=2 sw=2
+
+scriptencoding utf-8
+
+if !exists(':SyntasticCheck')
+  finish
+endif
+
+function! airline#extensions#syntastic#get_warnings()
+  let errors = SyntasticStatuslineFlag()
+  if strlen(errors) > 0
+    return errors.(g:airline_symbols.space)
+  endif
+  return ''
+endfunction
+
+function! airline#extensions#syntastic#init(ext)
+  call airline#parts#define_function('syntastic', 'airline#extensions#syntastic#get_warnings')
+endfunction
+