Improve guard so it works for no eof new line

compiler/ls.vim

@@ -1,4 +1,5 @@
 if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'livescript') == -1
+
 " Language:    LiveScript
 " Maintainer:  George Zahariev
 " URL:         http://github.com/gkz/vim-ls
@@ -73,4 +74,5 @@ augroup LiveScriptUpdateMakePrg
     autocmd BufFilePost,BufWritePost          call s:UpdateMakePrg()
   endif
 augroup END
+
 endif