feature request for ediff

[agrawal]

First: apologies if this is the wrong address for a feature request. If
I've hit the wrong place, please point me in the right direction.

ediff is extremely useful, but seems a bit clunky for diffing directory
trees. As far as I can tell, one must descend through the directory tree
"by hand", checking each directory for any differences between files. It
seems preferable to have a recursive option, where ediff would do a diff
-r <dir1> <dir2>, and then let the user browse through only those
directories that have differences.