Updated plugins

sources_non_forked/vim-flake8/autoload/flake8.vim

@@ -273,6 +273,10 @@ function! s:ShowErrorMessage()  " {{{
     if !exists('s:resultDict')
 	return
     endif
+    if !exists('b:showing_message')
+	" ensure showing msg is always defined
+	let b:showing_message = ' '
+    endif
 
     " if there is a message on the current line,
     " then echo it 
@@ -295,4 +299,3 @@ endfunction  " }}}
 
 let &cpo = s:save_cpo
 unlet s:save_cpo
-