git whitespace test

[Jim Meyering]

Ulrich Drepper wrote:
> Jim Meyering wrote:
>> How about an alternative: use a .gitattributes file to exempt just
>> those files.  Then we can turn the global hook back on, and relax
>> policy as needed by modifying .gitattributes.
>
> If this works, sure.

Ok.  I've pushed the .gitattributes-adding patch (without
the ChangeLog entry, as you requested) and reverted
the server-side setting to hooks.allowbadwhitespace=false.