[commit] Make "make clean" mo bettah

[Michael Snyder]

Paul Koning wrote:
> On Feb 21, 2011, at 10:22 PM, Michael Snyder wrote:
> 
>> I noticed an awful lot of files being left behind by "make clean".
>> Checking this in...
>> ...
>> Index: Makefile.in
>> ===================================================================
>> RCS file: /cvs/src/src/gdb/testsuite/Makefile.in,v
>>  ...
>> clean mostlyclean:
>> -	-rm -f *~ core *.o a.out xgdb *.x *.grt
>> +	-rm -f *~ core *.o a.out xgdb *.x *.grt bigcore.corefile
>> +	-rm - core.*
> 
> Did you mean "-f" there?

D'oh!
Will fix.