Commit
133ad3fc41c6bfd4ca7db06626293f85240d9088
by Oliver Smithdeps/update: skip checkout if nothing to do
Let the user see what changes when running "make deps" instead of
having unrelated lines for checking out the commits that are already
checked out.
Change-Id: I572ab11afd56e34d9d0d04cd1372af749caa7d48