Don't mark the cache dirty if it already us.
Don't mark the cache dirty if it already us.

Apparently we can't do that.

Signed-off-by: Bryan McLellan <9da9e2973b9c72b95f1bc7169993146760fceeb1@loftninjas.org>

chef/omnibus,rapid7/omnibus,rapid7/omnibus,chef/omnibus,chef/omnibus,rapid7/omnibus