Updated vimrc

sources_non_forked/syntastic/syntax_checkers/python/pyflakes.vim

@@ -7,7 +7,7 @@
 "
 "============================================================================
 
-if exists("g:loaded_syntastic_python_pyflakes_checker")
+if exists('g:loaded_syntastic_python_pyflakes_checker')
     finish
 endif
 let g:loaded_syntastic_python_pyflakes_checker = 1
@@ -27,12 +27,12 @@ function! SyntaxCheckers_python_pyflakes_GetHighlightRegex(i)
 
         " fun with Python's %r: try "..." first, then '...'
         let term = matchstr(a:i['text'], '\m^.\{-}"\zs.\{-1,}\ze"')
-        if term != ''
+        if term !=# ''
             return '\V\<' . escape(term, '\') . '\>'
         endif
 
         let term = matchstr(a:i['text'], '\m^.\{-}''\zs.\{-1,}\ze''')
-        if term != ''
+        if term !=# ''
             return '\V\<' . escape(term, '\') . '\>'
         endif
     endif
@@ -55,7 +55,7 @@ function! SyntaxCheckers_python_pyflakes_GetLocList() dict
         \ 'makeprg': makeprg,
         \ 'errorformat': errorformat,
         \ 'env': env,
-        \ 'defaults': {'text': "Syntax error"} })
+        \ 'defaults': {'text': 'Syntax error'} })
 
     for e in loclist
         let e['vcol'] = 0