[PATCH v4 0/3] rebase: --signoff support

Allow signing off a whole patchset by rebasing it with the `--signoff` option, which is simply passed through to `git am`.

Changes since v3:

* --no-signoff is actually accepted;
* the paragraph documenting --signoff is now in the correct place and
  it mentions explicitly that the option is not compatible with
interactive mode.

The patchset is also available in the git repository at:

  git://git.oblomov.eu/git rebase-signoff

(Unrelated note: it just occurred to me while preparing this cover letter that it would be nice if there was a way to combine `format-patch --cover-letter` and `request-pull`.)

Some work about extending --signoff support to interactive rebases is underway in the `rebase-signoff-ext` branch, but there's a lot of corner cases to test and work-out, so I guess that'll be fore some other time.

Giuseppe Bilotta (3):
  builtin/am: obey --signoff also when --rebasing
  builtin/am: fold am_signoff() into am_append_signoff()
  rebase: pass --[no-]signoff option to git am

 Documentation/git-rebase.txt |  5 +++++
 builtin/am.c                 | 39 +++++++++++++++++--------------------
 git-rebase.sh                |  3 ++-
 t/t3428-rebase-signoff.sh    | 46 ++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 71 insertions(+), 22 deletions(-)
 create mode 100755 t/t3428-rebase-signoff.sh