Improve guard so it works for no eof new line

syntax/slime.vim

@@ -1,4 +1,5 @@
 if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'slime') == -1
+
 " Vim syntax file
 " Language: slime
 " Maintainer: Andrew Stone <andy@stonean.com>
@@ -101,4 +102,5 @@ hi def link slimeWrappedAttrsDelimiter     Delimiter
 hi def link slimeInlineTagChar             Delimiter
 
 let b:current_syntax = "slime"
+
 endif