Improve guard so it works for no eof new line

indent/ember-script.vim

@@ -1,4 +1,5 @@
 if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'emberscript') == -1
+
 " Language:    ember-script
 " Maintainer:  Yulij Andreevich Lesov <yalesov@gmail.com>>
 " URL:         http://github.com/yalesov/vim-ember-script
@@ -13,4 +14,5 @@ endif
 runtime! indent/coffee.vim
 unlet! b:did_indent
 let b:did_indent = 1
+
 endif