static void mount_help(void)
{
    fprintf(stderr,
            "    -o allow_other         allow access to other users\n"
            "    -o allow_root          allow access to root\n"
            "    -o nonempty            allow mounts over non-empty file/dir\n"
            "    -o default_permissions enable permission checking by kernel\n"
            "    -o fsname=NAME         set filesystem name\n"
            "    -o subtype=NAME        set filesystem type\n"
            "    -o large_read          issue large read requests (2.4 only)\n"
            "    -o max_read=N          set maximum size of read requests\n"
            "\n"
            );
}
static void mount_help(void)
{
    fprintf(stderr,
            "    -o allow_other         allow access to other users\n"
            "    -o allow_root          allow access to root\n"
            "    -o nonempty            allow mounts over non-empty file/dir\n"
            "    -o default_permissions enable permission checking by kernel\n"
            "    -o fsname=NAME         set filesystem name\n"
            "    -o subtype=NAME        set filesystem type\n"
            "    -o large_read          issue large read requests (2.4 only)\n"
            "    -o max_read=N          set maximum size of read requests\n"
            "\n"
            );
}