Updated plugins

sources_non_forked/syntastic/syntax_checkers/python/pyflakes.vim

@@ -40,8 +40,7 @@ function! SyntaxCheckers_python_pyflakes_GetHighlightRegex(i)
 endfunction
 
 function! SyntaxCheckers_python_pyflakes_GetLocList() dict
-    let makeprg = self.makeprgBuild({
-        \ 'exe_before': (syntastic#util#isRunningWindows() ? '' : 'TERM=dumb') })
+    let makeprg = self.makeprgBuild({})
 
     let errorformat =
         \ '%E%f:%l: could not compile,'.
@@ -50,9 +49,12 @@ function! SyntaxCheckers_python_pyflakes_GetLocList() dict
         \ '%E%f:%l: %m,'.
         \ '%-G%.%#'
 
+    let env = syntastic#util#isRunningWindows() ? {} : { 'TERM': 'dumb' }
+
     let loclist = SyntasticMake({
         \ 'makeprg': makeprg,
         \ 'errorformat': errorformat,
+        \ 'env': env,
         \ 'defaults': {'text': "Syntax error"} })
 
     for e in loclist