bug#16074: 24.3.50; enhancement request: Remove "pop" from command names & doc for `C-(u|x) C-SPC'

[Drew Adams <drew.adams@oracle.com>]

> >> The names and doc of the commands bound to `C-u C-SPC' and `C-x C-
> >> SPC' are misleading, in that the commands do not really "pop" the 
> >> marker rings. They cycle the rings.  Markers are not removed from
> >> the rings by such "popping".
> >>
> >> Emacs uses the verb "cycle" for this kind of behavior elsewhere.
> >> The same terminology should be used here also.  We should rename
> >> `pop-global-mark' and rephrase the doc.
> >
> > Yes, renaming here seems like a good idea.
> 
> How about the attached patch?

Maybe I missed something when perusing the patch,
but it looks like it addresses only the global
mark ring (`C-x C-SPC'), not also the (local)
mark ring (`C-u C-SPC').

The enhancement request is about both.  The doc
for both speaks of "pop" instead of cycle.