Ticket References non-bug regex fixes about commitplease

[jzaefferer]

There's a list of valid keywords that GitHub accepts in #2. So "Closing" should indeed be rejected, since GitHub wouldn't recognise it.

The jQuery commit guidelines only list "Fixes" and "Closes", so while the first regex also looks for "Resolves", I reject that as well in the next regex.

That said, its quite possible that the regex can still be simplified. But at least your suggested fix seems wrong to me.

[bdowling]

This is on the line trying to detect mistakes. Your next line enforces the actual policy. I was just thinking through other cases you might want to detect, but given it's not valid for github perhaps you don't need to check for it. Sorry for suggesting.

[jzaefferer]

I think I now got what you were telling me. "Closing" is currently accepted as valid, but it shouldn't, right?