bug#10710: 23.4; left-over dbus processes

[Per Starback]

In GNU Emacs 23.4.1 (i686-pc-linux-gnu, GTK+ Version 2.18.9)
Windowing system distributor `Red Hat, Inc.', version 11.0.11004000
configured using `configure  '--prefix' '/local''
(It's CentOS 6.2.)

  $ ssh -Y somehost
  somehost$ emacs -Q --kill
  somehost$ pstree `id -un`
  dbus-daemon---{dbus-daemon}
  
  dbus-launch
  
  gconfd-2
  
  sshd---bash---pstree

So several dbus processes are created and left behind afterwards, which
is inconvenient. I found

  http://lists.gnu.org/archive/html/emacs-devel/2009-08/msg00940.html

which addresses a similar problem (where also dbus processes are created
after ssh + X).