[in tools/server-side/svnpubsub]
[in tools/server-side/svnpubsub]

svnwcsub: tell pre-update what revision it will be updatin gto.

* svnwcsub.py
  (BackgroundWorker._update): Determine HEAD before updating to it, pass that
    to the pre-update/pre-boot hook.

git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1494548 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion