[patch] libiberty/strdup.c: Constify the argument.

[Kazu Hirata]

Hi DJ,

> >   error: argument "s" doesn't match prototype
> 
> What prototype?  If there's a prototype, strdup.c shouldn't have been
> compiled - unless the runtime is broken?

Hmm.  I can't find one...  The GCC with Zack's patch would say the
same with or without const, so the error may be a bug in Zack's patch.

> > 	* strdup.c (strdup): Consitify the argument.
> 
> Ok.

Thanks.

Kazu Hirata