nit : missing a "%s" in a log message

Change-Id: I171cc14d7d9b3917dea90cd36dfec7e58afaf626
Imported Translations from Transifex

Change-Id: I674acacc96c2396c31658bab48a441dac56988b0
Merge "nit : missing a "%s" in a log message"
Merge "Imported Translations from Transifex"
Merge branch 'master' of https://github.com/openstack/quantum