[PATCH, doc RFA] Rename maint/set-debug "dwarf2" commands to "dwarf"

[Eli Zaretskii]

> Date: Wed, 13 May 2015 00:11:05 +0000
> From: Doug Evans <dje@google.com>
> 
> This patch renames the user-visible uses of "dwarf2" to "dwarf".
> It's triggered by the discussion here:
> https://sourceware.org/ml/gdb-patches/2015-05/msg00286.html

I have no comments to the docs, but do we want to leave behind an
alias, in case there are scripts out there that rely on this command's
current name?

Thanks.