Use a *real* built-in diff generator

diff --git a/git-applymbox.sh b/git-applymbox.sh
index 6de6932879e9f1298f69e2826f13e1ee231ecea0..5569fdcc3463b214411d5a168a00783b0d390044 100755 (executable)
--- a/git-applymbox.sh
+++ b/git-applymbox.sh
@@ -18,12 +18,10 @@
 ##
 ## git-am is supposed to be the newer and better tool for this job.
 
-. git-sh-setup || die "Not a git archive"
+USAGE='[-u] [-k] [-q] [-m] (-c .dotest/<num> | mbox) [signoff]'
+. git-sh-setup
 
-usage () {
-    echo >&2 "applymbox [-u] [-k] [-q] [-m] (-c .dotest/<num> | mbox) [signoff]"
-    exit 1
-}
+git var GIT_COMMITTER_IDENT >/dev/null || exit
 
 keep_subject= query_apply= continue= utf8= resume=t
 while case "$#" in 0) break ;; esac
@@ -33,7 +31,7 @@ do
        -k)     keep_subject=-k ;;
        -q)     query_apply=t ;;
        -c)     continue="$2"; resume=f; shift ;;
-       -m)     fallback_3way=t ;;
+       -m)     fall_back_3way=t ;;
        -*)     usage ;;
        *)      break ;;
        esac