[PATCH 1/7] wcsmbs: optimize wcpcpy

[Florian Weimer]

* Adhemerval Zanella:

> This patch rewrites wcpcpy using wcslen and wmemcpy.  This is
> similar to the optimizatio done on stpcpy by f559d8cf29.

Typo: “optimizatio”.

Patch looks okay to me.

Thanks,
Florian