git-email: Support appending to header.

Sometimes it is useful to append something to the value of a header
instead of overwriting it.  For example, one might have already Cc’d
someone, but now wants to Cc yet another person, by appending, they
don’t have to re-write the Email address of the first person they
Cc’d.

* git-email.el (git-email--rewrite-header-in-buffer): Add ‘append’
argument.
(git-email-rewrite-header): Add optional prefix argument ‘append’.

Signed-off-by: Xinglu Chen <public@yoctocell.xyz>

0 files changed, 0 insertions, 0 deletions