[PATCH] Adding wcs* and wmem* in libc/string.

[J. Johnston]

Kazuhiro Fujieda wrote:
> 
> A few days ago, Egor submitted a patch to add wmem* functions to
> libc/stdlib. I believe these functions should reside in
> libc/string according to *BSD C Libraries.
> 
> And we can add wcs* functions in *BSD Library to newlib because
> these functions don't depend on the implementation of wide
> characters.
> ____
>   | AIST      Kazuhiro Fujieda <fujieda@jaist.ac.jp>
>   | HOKURIKU  Center for Information Science
> o_/ 1990      Japan Advanced Institute of Science and Technology
> 
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Thank you.  Patch has been checked in with a few modifications.
I added the missing documentation for wcslcpy.c and wcslcat.c and
made a few minor documentation-format corrections to appease make info.
I also removed the outdated advertising clauses in two files taken
from BSD.

I have just added changes to libc.texinfo such that there
is a new chapter regarding these new routines.

-- Jeff J.