Use couch_db:dbname_suffix in is_replicator_db
Use couch_db:dbname_suffix in is_replicator_db

couch_db:dbname_suffix would take shard's suffix into account.

COUCHDB-2983

fkaempfer/couchdb,fkaempfer/couchdb,fkaempfer/couchdb,fkaempfer/couchdb,fkaempfer/couchdb,fkaempfer/couchdb