Documentation/hooks: add pre-auto-gc hook

diff --git a/git-am.sh b/git-am.sh
index 1f6b5e02c5e7da45a8e7966b600946cff9c24832..ac5c388060789e559f80d61d6eae1db926b66ad4 100755 (executable)
--- a/git-am.sh
+++ b/git-am.sh
@@ -357,7 +357,7 @@ do
                LAST_SIGNED_OFF_BY=`
                    sed -ne '/^Signed-off-by: /p' \
                    "$dotest/msg-clean" |
-                   tail -n 1
+                   sed -ne '$p'
                `
                ADD_SIGNOFF=`
                    test "$LAST_SIGNED_OFF_BY" = "$SIGNOFF" || {