- fprintf(stderr, "usage: %s [-r <bufsz>] [-p <port>] [-l <time_limit>] [-v] [-X] [-D] <gshub-hostname>:<gshub-port> <gsinstance_name> query param1 param2...\n",
+ fprintf(stderr, "usage: %s [-r <bufsz>] [-e] [-p <port>] [-l <time_limit>] [-v] [-X] [-D] <gshub-hostname>:<gshub-port> <gsinstance_name> query param1 param2...\n",