In the context of many projects renaming their primary branch names away
from `master`, Git wants to stop treating the `master` branch specially.
Let's start with `git fmt-merge-msg`.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Given that "git show" always shows some diff and does not walk the history
by default, it is natural to expect "git show --first-parent" to show the
difference between the given commit and its first parent. It also would
be natural, given that "--cc" is the default, "git show -m" to show
pairwise difference from each of the parents.
We however always defaulted to --cc and there was no way to turn it off.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
