bin/cache_gc.py uses job-specific logger
bin/cache_gc.py uses job-specific logger


Former-commit-id: 8e26bacbaffffc80d7bb170f2f3224528d291b13 [formerly 52734e3a1592ac7887a0bbba38a5cc01e2ffab71]
Former-commit-id: bda7e6ce644becf513cead84e78281ae502d2289
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine