[RFA/sparc] Fix step-bt.exp: backtrace after second instruction step

[Daniel Jacobowitz]

On Wed, Nov 08, 2006 at 08:58:01PM -0800, Joel Brobecker wrote:
> Hello,
> 
> I encountered on sparc the same problem I saw on i386: When scanning
> a function prologue, if an instruction is replaced by a breakpoint,
> we read the breakpoint instead of reading the original instruction.
> 
> Fixed using the same method as in i386...

OK.

-- 
Daniel Jacobowitz
CodeSourcery