/usr/bin/udaddy: invalid option -- '-'
usage: /usr/bin/udaddy
	[-s server_address]
	[-b bind_address]
	[-f address_format]
	    name, ip, ipv6, or gid
	[-P port_space]
	    udp or ipoib
	[-c connections]
	[-C message_count]
	[-S message_size]
	[-t type_of_service]
	[-p port_space - 0x111 for UDP (default), 0x2 for IPOIB]