[PATCH] Fix gcc 9 build errors for make xcheck.

[Andreas Schwab]

On Jun 18 2019, Stefan Liebler <stli@linux.ibm.com> wrote:

>>>         error (0, 0, "Wrong result in function %s %s %s", impl->name,
>>> -	     res, exp_result);
>>> +	     (res == NULL) ? "NULL" : res,
>>> +	     (exp_result == NULL) ? "NULL" : exp_result);
>>
>> Ok.  Do we have a standard for printing NULL?  I mean, other unix's
>> print "(null)" for example.  If we're changing it anyway, a bit of
>> consistency would be nice.  But OK anyway :-)
> Changed all to "(NULL)".

printf uses "(null)".

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
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