Improve guard so it works for no eof new line

syntax/opencl.vim

@@ -1,4 +1,5 @@
 if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'opencl') == -1
+
 " Vim syntax file
 " Language:	OpenCL (Open Computing Language)
 " Maintainer:	Terence Ou (rivan_@msn.com)
@@ -156,4 +157,5 @@ hi def link clStatement         Statement
 let b:current_syntax = "opencl"
 
 " vim: ts=8
+
 endif