Improve guard so it works for no eof new line

syntax/gomod.vim

@@ -1,4 +1,5 @@
 if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'go') == -1
+
 " gomod.vim: Vim syntax file for go.mod file
 "
 " Quit when a (custom) syntax file was already loaded
@@ -84,4 +85,5 @@ syntax match gomodVersion "v[2-9]\{1}\d*\.\d\+\.\d\+\%(+\%([0-9A-Za-z-]\+\)\%(\.
 highlight default link gomodVersion Identifier
 
 let b:current_syntax = "gomod"
+
 endif