Problem with new step-bt test?

[Daniel Jacobowitz]

(gdb) PASS: gdb.base/step-bt.exp: step second instruction
bt
#0  hello () at /space/fsf/commit/src/gdb/testsuite/gdb.base/step-bt.c:27
#1  0x00000000004004d1 in main () at
/space/fsf/commit/src/gdb/testsuite/gdb.base/step-bt.c:33
(gdb) FAIL: gdb.base/step-bt.exp: backtrace after second instruction step
testcase /space/fsf/commit/src/gdb/testsuite/gdb.base/step-bt.exp completed
in 2 seconds

I figure that ought to be a PASS output, right?  I think the problem is that
the two hex patterns need to be optional, but I haven't tried it.

-- 
Daniel Jacobowitz
CodeSourcery