[PATCH] Fix xfail Sparc pattern

[Michael Elizabeth Chastain]

Fernando Nasser writes:
> I wonder if we should activate this test and see where it fails and
> start marking as XFAILS (KFAILS actually) and entering a bug report 
> when we see the regressions.

I think so.  The comment indicates that this is due to a problem
inside gdb, not a problem with the environment, so that XFAIL is wrong
in the first place.

This is the old "XFAIL means an external program is not functional"
versus "XFAIL means that gdb is wrong but it's too painful to fix"
argument.

Michael C