[rfa/testsuite] gdb.mi/mi-pthreads.exp, gdb.mi/mi1-pthreads.exp: work with stripped libc

[Michael Elizabeth Chastain]

Thanks, Elena.

Committed.

Michael C

===

2003-01-03  Michael Chastain  <mec@shout.net>

	* gdb.mi/mi-pthreads.exp (check_mi_thread_command_set):
	When selecting a thread, 'line' and 'file' are optional.
	* gdb.mi/mi1-pthreads.exp: Likewise.