Improve guard so it works for no eof new line

syntax/erlang.vim

@@ -1,4 +1,5 @@
 if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'erlang') == -1
+
 " Vim syntax file
 " Language:     Erlang (http://www.erlang.org)
 " Maintainer:   Csaba Hoch <csaba.hoch@gmail.com>
@@ -260,4 +261,5 @@ let &cpo = s:cpo_save
 unlet s:cpo_save
 
 " vim: sw=2 et
+
 endif