Fix reference to out of scope local in adb_thread_setname.

#ifdef __APPLE__

    return pthread_setname_np(name.c_str());

#else

    const char *s = name.c_str();

    // pthread_setname_np fails rather than truncating long strings.

    const int max_task_comm_len = 16; // including the null terminator

    if (name.length() > (max_task_comm_len - 1)) {

        char buf[max_task_comm_len];

    // Both bionic and glibc's pthread_setname_np fails rather than truncating long strings.

    // glibc doesn't have strlcpy, so we have to fake it.

    char buf[16];  // MAX_TASK_COMM_LEN, but that's not exported by the kernel headers.

    strncpy(buf, name.c_str(), sizeof(buf) - 1);

    buf[sizeof(buf) - 1] = '\0';

        s = buf;

    }

    return pthread_setname_np(pthread_self(), s) ;

    return pthread_setname_np(pthread_self(), buf);

#endif

}