[RFC] Add watchpoint hit address function to procfs.c

[Joel Brobecker]

> (BTW, I'm thinking of reformating all comments in procfs.c to
> follow the coding conventions, so we avoid the tentation
> of proliferating this other format in procfs.c.  Joel, you're
> the most likely to have non-FSF contributed patches to procfs.c.
> If that change would make it harder for you to merge patches
> upstream, just say so, and I'll forget doing the reformating.)

Thanks for the kind notice! We do have a few procfs patches, but I think
that this should not prevent you from going ahead.  I might have a little
extra grief on the next resync that I do, but that will be fine.

-- 
Joel