[patch] Fix new string2.h optimization

[Ulrich Drepper]

Ben Collins <bcollins@debian.org> writes:

> 2002-01-29  Ben Collins  <bcollins@debian.org>
> 
> 	* string/bits/string2.h: __mempcpy(): Protect size arg for
> 	addition when using __builtin_memcpy.

I've applied the patch.  Thanks,

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