The changeset (or "diff") of each commit between the fork-point and <head>
is compared against each commit between the fork-point and <upstream>.
-Every commit with a changeset that doesn't exist in the other branch
-has its id (sha1) reported, prefixed by a symbol. Those existing only
+Every commit that doesn't exist in the <upstream> branch
+has its id (sha1) reported, prefixed by a symbol. The ones that have
+equivalent change already
in the <upstream> branch are prefixed with a minus (-) sign, and those
that only exist in the <head> branch are prefixed with a plus (+) symbol.
Each commit between the fork-point (or <limit> if given) and <head> is
examined, and compared against the change each commit between the
fork-point and <upstream> introduces. If the change seems to be in
-the upstream, it is shown on the standard output with prefix "+".
-Otherwise it is shown with prefix "-".'
+the upstream, it is shown on the standard output with prefix "-".
+Otherwise it is shown with prefix "+".'
. git-sh-setup
case "$1" in -v) verbose=t; shift ;; esac