Function usage

lib_acl_cpp/samples/beanstalk2/beanstalk.cpp:42–45

}

static void usage(const char* procname)
{
	printf("usage: %s -h [help] -s beanstalk_addr [127.0.0.1:11300] -n max_count\r\n", procname);
}

int main(int argc, char* argv[])
{