Improve guard so it works for no eof new line

syntax/nim.vim

@@ -1,4 +1,5 @@
 if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'nim') == -1
+
 " For version 5.x: Clear all syntax items
 " For version 6.x: Quit when a syntax file was already loaded
 if version < 600
@@ -203,4 +204,5 @@ endif
 
 let b:current_syntax = "nim"
 
+
 endif