update the manual dates

[Stan Shebs]

   Date: Tue, 27 Jan 1998 15:55:58 PST
   From: "Marty Leisner" <leisner@sdsp.mc.xerox.com>

(I've redirected to gdb, since gdb-testers is mainly for snapshot
announcements.)

   Surely this is not accurate:
   This file describes GDB, the GNU symbolic debugger.

      This is Edition 4.12, January 1994, for GDB Version 4.16

   Get the date current (I think the date is more important
   than version numbers...also drop Edition...(and just have
   version) (IMHO)

Strictly speaking, the manual hasn't changed significantly since the
upgrade around 4.12, although there have been a number of minor
additions.

I note that while GCC's manual doesn't have an "edition" different
from the compiler version, the Emacs manual near my desk is the
"Ninth Edition, for Emacs 19".  One could make an argument that
the GDB manual should be more like the Emacs manual, since they're
both interactive tools, but the "4.12" *is* confusing...

I've cc'ed Roland Pesch, who I believe applied the Edition moniker,
to see if he has a specific rationale for this nomenclature.

							Stan