+ " \"-guid\": set vendor guid\n"
+ " \"-nv\": set non-volatile attribute\n"
+ " \"-bs\": set boot-service attribute\n"
+ " \"-rt\": set runtime attribute\n"
+ " \"-at\": set time-based authentication attribute\n"
+ " \"-a\": append-write\n"
+ " \"-i addr,size\": use <addr,size> as variable's value\n"
+ " \"-v\": verbose message\n"