Breaks with GitHub usernames containing spaces

[aspiers]

e.g. look at the edits I had to make to this comment.

[jerone]

Confirmed and thanks. Will release a fix later.

[jerone]

GitHub Refined did add something similar recently: refined-github/refined-github#2556. They only include the username.

The main advantage of this UserScript is that the whole message is pinned by the current time. This is useful when replying to an users message, and they edit the message after replying.