Improve guard so it works for no eof new line

indent/json.vim

@@ -1,4 +1,5 @@
 if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'json') == -1
+
 " Vim indent file
 " Language:		JSON
 " Mantainer:		Eli Parra <eli@elzr.com> https://github.com/elzr/vim-json
@@ -176,4 +177,5 @@ unlet s:cpo_save
 
 " vim:set sw=2 sts=2 ts=8 noet:
 
+
 endif