Improve guard so it works for no eof new line

indent/arduino.vim

@@ -1,4 +1,5 @@
 if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'arduino') == -1
+
 " Vim indent file
 " Language:	Arduino
 " Maintainer:	Kevin Sjöberg <kev.sjoberg@gmail.com>
@@ -14,4 +15,5 @@ let b:did_indent = 1
 setlocal cindent
 
 let b:undo_indent = "setl cin<"
+
 endif