[RFA] Add new cmd line parameter "--pid" for attach.

[Eli Zaretskii]

> Date: Sat, 05 Jan 2002 13:07:42 -0800
> From: Michael Snyder <msnyder@redhat.com>
> 
> + @item -pid @ver{number}
> + @itemx -p @var{number}
> + @cindex @code{--pid}
> + @cindex @code{-p}
> + Use @var{number} as a process ID to attach to.
> + 
> + @item -p @var{number}
> + Connect to process ID @var{number}, as with the @code{attach} command.
> + If there is no such process, @value{GDBN} will attempt to open a core
> + file named @var{number}.

This seems to describe the new option twice.  You probably meant to
merge the two description parts, and eliminate the second "@item -p".

Other than that, it can go in.  Thanks.