Do not terminate default test runs on test failure

[Brooks Moses]

On 03/11/2014 02:24 PM, Roland McGrath wrote:
>> Whether to exit with error status if there were FAILs, or only if there
>> were ERRORs, was one of my questions on the first version of this patch,
>> where the only previous comment was from Brooks preferring FAILs not to
>> cause an error status
>> <https://sourceware.org/ml/libc-alpha/2014-02/msg00301.html>.  I'm happy
>> either way; error exit for any FAILs is just two extra grep lines like
>> those ensuring error exit for any ERRORs.
>
> The status quo is that 'make check' only exits zero if all tests passed.
> So please preserve that.

I won't sustain an objection to this decision.  Although I find it more 
convenient to only have an error exit in case of ERROR, it's a fairly minor 
thing to work around.

- Brooks