Handle #issuecomment-371266836 like strings in PR link

[gibfahn]

Often when you're going through your notifications, you end up with something on the end of the pull request URL, for example:

https://github.com/nodejs/node/pull/19201#issuecomment-371266836
https://github.com/nodejs/node/pull/19201#event-1509291051
https://github.com/nodejs/node/pull/19201/files
https://github.com/nodejs/node/pull/19201#pullrequestreview-102067476

If you run git node metadata https://github.com/nodejs/node/pull/19201#issuecomment-371266836 it just shows the help text.

It should be easy to adjust the regex to handle anything of the form

https://(?:www.)github.com/(\w\+)/(\w\+)/pull/([0-9]+).*

and just capture the three things you need (in ()).

Also https://www.github.com/nodejs/node/pull/19201 doesn't currently work.

[gibfahn]

IDK what the difference between enhancement and feature request is, so I'll ad both 😁.

[priyank-p]

IDK what the difference between enhancement and feature request is, so I'll ad both 😁.

I added descriptions to some labels (including enhancements, and feature request), I might not be the best person to add those so maybe some else can add some descriptions :)

[gibfahn]

Just to add, it looks like you can't currently do git node land https://github.com/nodejs/node/pull/19130.

[priyank-p]

Just to add, it looks like you can't currently do git node land https://github.com/nodejs/node/pull/19130.

Can you open a new issue for this? I totally missed it.