Improve guard so it works for no eof new line

syntax/svelte.vim

@@ -1,4 +1,5 @@
 if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'svelte') == -1
+
 " Vim syntax file
 " Language:   Svelte 3 (HTML/JavaScript)
 " Author:     Evan Lecklider <evan@lecklider.com>
@@ -59,4 +60,5 @@ highlight def link svelteKeyword Keyword
 highlight def link svelteRepeat Repeat
 
 let b:current_syntax = "svelte"
+
 endif