Little tiny change to accept cpu or cpu_time, wall or wall_time, etc.
Little tiny change to accept cpu or cpu_time, wall or wall_time, etc.

git-svn-id: a649f8b53cef7d15963550bf81aeba716f52dec1@53 5fb4a865-4516-0410-ae3b-a609ddf12040

mag/ruby-prof,mag/ruby-prof