* remote-utils.c (prepare_resume_reply): Null-terminate packet.

	* remote-utils.c (prepare_resume_reply): Null-terminate packet.
	* spu-low.c (current_tid): Rename to ...
	(current_ptid): ... this.
	(fetch_ppc_register, fetch_ppc_memory, store_ppc_memory,
	spu_proc_xfer_spu, spu_resume, spu_request_interrupt): Use
	ptid_get_lwp (current_ptid) instead of current_tid.
	(spu_kill, spu_detach, spu_join, spu_wait): Use pid argument
	instead of current_tid.  Use find_process_pid to verify pid
	argument is valid.  Pass proper argument to remove_process.
	(spu_thread_alive): Compare current_ptid instead of current_tid.
	(spu_resume): Likewise.