(unknown)

The purpose of this series of patches is to implement a new "quote-email" feature integrated in the current `--in-reply-to` option.

 * The first 2 patches make the tests less dependent to
   `git send-email`'s exact output.

 * Third patch makes `git send-email` a bit less verbose.

 * Fourth patch introduces our email parser subroutine.

 * Fifth patch makes the `--in-reply-to` open a email file (if it
   exists) and populates From:, To:, Cc:, In-reply-to and
   References: fields.

 * Sixth patch quotes the message body in the cover letter if
   `--compose` is set. Else, imply `--annotate` and insert quoted
   message body below triple-dash in the first patch.

Changes since v3:
 - test_cmp_noorder shell function fixed             (patch 1/6)
 - use fgrep instead of grep                         (patch 2/6)
 - typo fixed                                        (patch 3/6)
 - email parser subroutine moved to Git.pm library   (patch 4/6)
 - test if $mail->{"cc"} is defined                  (patch 5/6)

  [PATCH v4 1/6] t9001: non order-sensitive file comparison
  [PATCH v4 2/6] t9001: check email address is in Cc: field
  [PATCH v4 3/6] send-email: shorten send-email's output
  [PATCH v4 4/6] send-email: create email parser subroutine
  [PATCH v4 5/6] send-email: --in-reply-to=<file> populate header
  [PATCH v4 6/6] send-email: add option --cite to quote the message

 Documentation/git-send-email.txt |  17 +++++-
 git-send-email.perl              | 150 ++++++++++++++++++++++++++++++++++++++++++++-----
 perl/Git.pm                      |  34 ++++++++++++
 t/t9001-send-email.sh            | 190 +++++++++++++++++++++++++++++++++++++++++++++++++++------------
 4 files changed, 339 insertions(+), 52 deletions(-)