[OB PATCH] Fix compilation error with clang in gdb/testsuite/gdb.trace/tspeed.c

[Gary Benson]

Simon Marchi wrote:
> On 2020-04-20 10:15 a.m., Gary Benson via Gdb-patches wrote:
> > It's not my day today!  Should I commit a fix to the ChangeLog, or
> > should I leave it alone?
> 
> Yes, just push a simple fix to the ChangeLog (this fix shouldn't
> have a ChangeLog entry of its own :)).

Done.

Thanks,
Gary