re-word recycle parameter documentation
re-word recycle parameter documentation

Change-Id: I80cabcd9fa3f3b45e5355bf6c774a8eee02e7f1b

monetate/sqlalchemy,wujuguang/sqlalchemy,j5int/sqlalchemy,monetate/sqlalchemy,j5int/sqlalchemy,sqlalchemy/sqlalchemy,zzzeek/sqlalchemy,wujuguang/sqlalchemy,graingert/sqlalchemy,graingert/sqlalchemy