bug#54536: 29.0.50; Improve ERC's handling of multiline prompt input

[J.P.]

Hi Michael,

Michael Albinus <michael.albinus@gmx.de> writes:

> So your branch name must start with one of these words.

Thanks a lot for the explanation. Among those prefixes, "fix" seems the
least misleading for my purposes, those being (1) rapid iteration toward
a passing pipeline and (2) minimal distraction for others. Hopefully,
there's already precedent for more ephemeral, fly-by-night "fix/*"
branches. If so, and there's a prescribed naming scheme to that end
(something like "fix/bug-48598-temp" or similar), perusing the remote
refs hasn't revealed it. Regardless, I'll wait for a go-ahead before
trying anything.

Thanks again,
J.P.