Improve guard so it works for no eof new line

after/syntax/c.vim

@@ -1,4 +1,5 @@
 if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'c++11') == -1
+
 " Vim syntax file
 " Language: C Additions
 " Maintainer: Jon Haggblad <jon@haeggblad.com>
@@ -303,4 +304,5 @@ hi def link cBoolean Boolean
 "hi def link cDelimiter Delimiter
 " foldmethod=syntax fix, courtesy of Ivan Freitas
 "hi def link cBraces Delimiter
+
 endif