bug#6351: 23.1.95; `vc-print-log' should preserve point

[Markus Triska]

In "emacs -Q", when I do "C-x v l" on a file under git version control,
then move point in the log buffer with (for example) "C-v C-v C-v" to
view previous commit messages, then, after the log is completely
available, point is unexpectedly moved to the start of the log buffer.


In GNU Emacs 23.1.95.5 (i386-apple-darwin8.11.1, X toolkit, Xaw3d scroll bars)
 of 2010-04-10 on mt-computer.lan
Windowing system distributor `The X.Org Foundation', version 11.0.10402000
configured using `configure  '--with-x-toolkit=lucid''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_GB.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: nil
  default enable-multibyte-characters: t