pubsub_filtered: properly check --expected-value exists for --expected-key
pubsub_filtered: properly check --expected-value exists for --expected-key

bitly/simplehttp,jtsui/leveldb-daemon,jtsui/leveldb-daemon,bitly/simplehttp,jmptrader/simplehttp,jmptrader/simplehttp,jmptrader/simplehttp,bitly/simplehttp,jtsui/leveldb-daemon