Nginx config is improperly parsing punctuation

[ct-martin]

Submitted this upstream but cross-posting here since it affects Shiki. I can submit a PR with the fix if you'd like.

hangxingliu/vscode-nginx-conf-hint#134

(Code in that issue was taken from the Shiki/TextMate Playground: https://textmate-grammars-themes.netlify.app/?grammar=nginx&theme=dark-plus)

[slevithan]

Any fixes upstream will automatically be updated here.

I can submit a PR with the fix if you'd like.

Submitting a PR upstream would probably help it get fixed sooner.