Merge "Added --help option to dumpsys."

    return lhs->compare(*rhs);

}

static void usage() {

    fprintf(stderr,

        "usage: dumpsys\n"

            "         To dump all services.\n"

            "or:\n"

            "       dumpsys [--help | -l | SERVICE [ARGS]]\n"

            "         --help: shows this help\n"

            "         -l: only list services, do not dump them\n"

            "         SERVICE: dumps only service SERVICE, optionally passing ARGS to it\n");

}

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

{

    signal(SIGPIPE, SIG_IGN);

    Vector<String16> services;

    Vector<String16> args;

    bool showListOnly = false;

    if ((argc == 2) && (strcmp(argv[1], "-l") == 0)) {

    if (argc == 2) {

        if (strcmp(argv[1], "--help") == 0) {

            usage();

            return 0;

        }

        if (strcmp(argv[1], "-l") == 0) {

            showListOnly = true;

        }

    }

    if ((argc == 1) || showListOnly) {

        services = sm->listServices();

        services.sort(sort_func);