Sorry - somehow I ended up attaching an old version of the patch.  The correct one is attached.

Proposed changelog entry:

Prevent vc actions from destroying window configuration

* vc-dispatcher.el (vc-finish-logentry): Changed delete-windows-on to quit-window

On Wed, Feb 10, 2010 at 2:30 AM, Glenn Morris <rgm@gnu.org> wrote:

Your patch seems to include a huge number of formatting changes
throughout the file. Please could you send it again, with just the
actual relevant changes, and with a proposed ChangeLog entry. Thanks.