Improve guard so it works for no eof new line

ftplugin/mako.vim

@@ -1,4 +1,5 @@
 if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'mako') == -1
+
 " Vim filetype plugin file
 " Language:     Mako
 " Maintainer:   Randy Stauner <randy@magnificent-tears.com>
@@ -10,4 +11,5 @@ let b:did_ftplugin = 1
 
 setlocal comments=:##
 setlocal commentstring=##%s
+
 endif