Improve guard so it works for no eof new line

indent/erlang.vim

@@ -1,4 +1,5 @@
 if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'erlang') == -1
+
 " Vim indent file
 " Language:     Erlang (http://www.erlang.org)
 " Author:       Csaba Hoch <csaba.hoch@gmail.com>
@@ -1482,4 +1483,5 @@ let &cpo = s:cpo_save
 unlet s:cpo_save
 
 " vim: sw=2 et fdm=marker
+
 endif