[PATCH 0/3] git-merge-base -a vs. git-show-branch --merge-base

The two commands above behave differently when more than two commits are
given. The purpose of this patch series is to correct and improve the
documentation in this regard, and to document the difference in behavior
with a test.

1/3 only depicts the DAG of a test which is already present, to make it
easier for future test writers (such as that of 3/3).

2/3 cleans up the documentation so that man pages and usage strings for
those two commands coincide.

3/3 adds a test case and corrects the documentation with regards to
merge bases for more than two commits.

Michael J Gruber (3):
  t6010-merge-base.sh: Depict the octopus test graph
  git-merge-base/git-show-branch: Cleanup documentation and usage
  git-merge-base/git-show-branch --merge-base: Documentation and test

 Documentation/git-merge-base.txt  |    9 +++++++--
 Documentation/git-show-branch.txt |   13 ++++++++-----
 builtin-merge-base.c              |    2 +-
 builtin-show-branch.c             |    6 +++---
 t/t6010-merge-base.sh             |   18 ++++++++++++++++++
 5 files changed, 37 insertions(+), 11 deletions(-)