malloc patch for 2.2.4

[Ulrich Drepper]

Wolfram Gloger <Wolfram.Gloger@dent.med.uni-muenchen.de> writes:

> 2001-08-27  Wolfram Gloger  <wg@malloc.de>
> 
> 	* malloc/malloc.h: Add volatile to hook pointer declarations.
> 	* malloc/malloc.c: Add volatile to hook pointer definitions.

If this isn't changing anything it's not worth applying.  It just
hides the fact that no problem has been identified and fixed.

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