git-fetch: print the new and old ref when fast-forwarding

Signed-off-by: Lukas Sandström <lukass@etek.chalmers.se>
Signed-off-by: Junio C Hamano <junkio@cox.net>

git-fetch.sh

@@ -164,6 +164,7 @@ fast_forward_local () {
 		;;
 	    *,$local)
 		echo >&2 "* $1: fast forward to $3"
+		echo >&2 "  from $local to $2"
 		git-update-ref "$1" "$2" "$local"
 		;;
 	    *)