Re: [PATCH v2] wt-status: correct and simplify check for detached HEAD

> Fix that by doing the comparison using strcmp() and only after the
> branch name is extracted.  This way neither too less nor too many
> characters are checked.  While at it call strchrnul() to find the end
> of the branch name instead of open-coding it.
> 
> Helped-by: Jeff King <peff@peff.net>
> Signed-off-by: Rene Scharfe <l.s.r@web.de>
> ---
> We can be more careful when parsing -- or avoid parsing and backtrack
> if we found "HEAD" after all.  The latter is simpler, and string
> parsing is tricky enough that we better take such opportunities to
> simplify the code..