mail.sh: include a "References" header for branch updates
commit70f68c201cd7a475803fbca881db3b77eaf5b3af
authorKyle J. McKay <mackyle@gmail.com>
Wed, 8 Nov 2017 19:11:14 +0000 (8 11:11 -0800)
committerKyle J. McKay <mackyle@gmail.com>
Wed, 8 Nov 2017 19:11:14 +0000 (8 11:11 -0800)
tree3929e203051241da8bf7a6779734a0cc7b656c6d
parentd809eca4d0f3c601b1b78731365b5e4fc68892b0
mail.sh: include a "References" header for branch updates

Since the subject line of a branch update includes the new
hash, updates for the same branch name fail to thread
together if the MUA supports message threading and threading
has been enabled.

Mitigate this problem by including a "References:" header
the specifies both the branch being updated and the host
it's located on thereby allowing updates for the same
branch to be threaded together by the MUA if desired.

Signed-off-by: Kyle J. McKay <mackyle@gmail.com>
taskd/mail.sh