Quote wildcards for shell command

[danvk]

PR Checklist

• Addresses an existing issue: fixes #000
• That issue was marked as status: accepting prs

Overview

No existing issues, but I did run into one when running the command from the README:

$ npx tslint-to-eslint-config --prettier --comments **/*.ts[x]
npx: installed 56 in 4.615s

✨ 77 rules replaced with their ESLint equivalents. ✨

...

♻ 1 file of TSLint comment directives converted to ESLint. ♻

Whoops! My shell is eating up the glob. Really it should be quoted:

npx tslint-to-eslint-config --prettier --comments '**/*.tsx'
npx: installed 56 in 4.219s

✨ 77 rules replaced with their ESLint equivalents. ✨

...

♻ 144 files of TSLint comment directives converted to ESLint. ♻

[JoshuaKGoldberg]

SGTM, thanks!