Re: [PATCH 11/19] bash prompt: use bash builtins to find out current branch

SZEDER Gábor [off-list ref] writes:

Since HEAD is a single-line file and the symbolic ref format is quite
simple to recognize and parse,...

Strictly speaking, that is true only if you somehow know that HEAD is not
a symlinked symref.  You may end up reading [0-9a-f]{40} out of HEAD
without learning where the symbolic link pointed at.

I personally do not _know_ of anybody who is still using a symlinked
symref, but the reasoning behind 9f0bb90 (core.prefersymlinkrefs: use
symlinks for .git/HEAD, 2006-05-02) cannot go away by definition until
every project that benefited from the configuration the commit introduced
goes extinct, so I wouldn't be surprised if you get complaints from the
users if we adopt this patch.