Add new --verify option to hot-backup.py.
Add new --verify option to hot-backup.py.

* tools/backup/hot-backup.py.in
  Added command line option "--verify".  If flag is present, the
  backup will be verified using 'svnadmin verify' in a new step
  between step 3 (hotcopy) and 4 (compress).

Patch by: Leo Davis <ldavis@fonix.com>
          (Tweaked by me.)

git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@987379 13f79535-47bb-0310-9956-ffa450edef68

wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion