Re: 'simple' push check that branch name matches does not work if push.default is unset (and hence implicitly simple)

Jeff King [off-list ref] writes:

There is some other magic with "simple", too, around triangular
workflows. Describing it in detail would probably be too verbose in this
message, but we do refer to the description of push.default, which is
probably enough.  Technically this new bit you are adding here is
covered there, too. But since we can improve the description by adding
such a small amount of text in this case, it seems like a reasonable
tradeoff.

I suppose we could also customize the message based on the triangular
and non-triangular cases. I dunno.

Yeah, I vaguely recall suggesting to polish advice message further
to help users along a similar line, but probably that fell in the
cracks.

Thanks for a quick fix.