Given a set of changes, specified as patch files or revisions, determine people
who might be interested in those changes. This is done by consulting the
history of each patch or revision hunk to find people mentioned by commits
which touched the lines of files under consideration.
Input consists of one or more patch files or revision arguments. A revision
argument can be a range or a single <rev> which is interpreted as
<rev>..HEAD, thus the same revision arguments are accepted as for
git-format-patch(1). Patch files and revision arguments can be combined
in the same invocation.
This command can be useful for determining the list of people with whom to
discuss proposed changes, or for finding the list of recipients to Cc: when
submitting a patch series via git send-email. For the latter case, git
contacts can be used as the argument to git send-email's --cc-cmd option.