[PATCH v2 0/3] Claryfing the meaning of the sign-off

So here is to tie the loose ends, based on inputs to the first round.

 * [1/3] is new; this is a preparatory clean-up to dedup two very
   similar paragraphs in the existing documentation, thanks to the
   idea by Philippe Blain.

 * [2/3] is text taken from Bradley's patch to update the manpages;
   thanks to the preparatory clean-up, we no longer need to
   duplicate the new text.  Grammofix pointed out by Ted Ts'o has
   also been applied.

 * [3/3] clarifies what sign-off means to _this_ project.  This step
   hasn't changed from what has been queued in 'seen'.

For those who missed the original, it appears at 

    lore.kernel.org/git/20201015215933.96425-1-bkuhn@sfconservancy.org

Bradley M. Kuhn (1):
  Documentation: clarify and expand description of --signoff

Junio C Hamano (2):
  doc: preparatory clean-up of description on the sign-off option
  SubmittingPatches: clarify DCO is our --signoff rule

 Documentation/SubmittingPatches  | 25 ++++++++++++++-----------
 Documentation/git-commit.txt     | 10 ++--------
 Documentation/merge-options.txt  | 11 +----------
 Documentation/signoff-option.txt | 18 ++++++++++++++++++
 4 files changed, 35 insertions(+), 29 deletions(-)
 create mode 100644 Documentation/signoff-option.txt