send-pull-request: allow users to select git-send-email or sendmail
Some users find it easier to use their git sendmail setup over a local
MTA to deliver mail with the send-pull-request script. If you would
like to do this, please read the git-send-email man page and set
the relevant entries in your git config. In particular, be sure to
set sendemail.from to avoid being asked each time.
Reported-by: Khem Raj <raj.khem@gmail.com> CC: Bruce Ashfield <bruce.ashfield@windriver.com> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
