[PATCH 0/6] per branch options for git-merge

This patch-series implements support for per branch configuration of git-merge, using entries (branch.<name>.mergeoptions) in .git/config. Since this makes it possible to specify --no-commit and --squash as default options for git-merge, the new options --commit and --no-squash are added to enable users to override such defaults.

There is also a new option, --no-ff, which can be used to force git-merge to create a merge commit even when the merge was a fast-forward (and a matching --ff option to allow overrides).

Shortlog:
  Add test-script for git-merge porcelain
  git-merge: fix faulty SQUASH_MSG
  git-merge: refactor option parsing
  git-merge: add support for branch.<name>.mergeoptions
  git-merge: add support for --commit and --no-squash
  git-merge: add --ff and --no-ff options

Diffstat:
 Documentation/config.txt        |    6 +
 Documentation/git-merge.txt     |    4 +
 Documentation/merge-options.txt |   17 ++
 git-merge.sh                    |   65 +++++-
 t/t7600-merge.sh                |  440 +++++++++++++++++++++++++++++++++++++++
 5 files changed, 521 insertions(+), 11 deletions(-)