Avoiding github link bitrot Re: Slow highlighting (Re: "drop-in replacement" and transpose-words-match)

[Daniel Shahaf <d.s@xxxxxxxxxxxxxxxxxx>]

Sebastian Gniazdowski wrote on Thu, Feb 11, 2016 at 11:43:50 +0100:
> https://github.com/zsh-users/zsh/blob/master/Src/params.c#L1360-L1396

Links that name a ref (such as "master") rather than a hash will
eventually point to different contents than they do now.  You can avoid
this by typing 'y' in the browser (which pegs the link at the hash
'master' currently points to) before copying the address.