Add $gdb_prompt to test regexp.

http://sourceware.org/ml/gdb-patches/2013-07/msg00173.html

	* gdb.python/py-explore.exp: Add $gdb_prompt to test regexp.
2013-07-08  Andreas Arnez  <arnez@linux.vnet.ibm.com>

	* gdb.threads/wp-replication.exp: Stop counting available hardware
	watchpoints after NR_THREADS iterations.