Fix a bug caused by using an uninitialized variable.
Fix a bug caused by using an uninitialized variable.

* subversion/libsvn_ra_serf/property.c
  (retrieve_baseline_info): Add docstring, and allow 'actual_revision'
    to be NULL to indicate caller apathy.  While here, make some
    non-overlapping formatting corrections.

* subversion/libsvn_ra_serf/property.c
  (svn_ra_serf__get_baseline_info): Rework the VCC-hunt fallback
    scenario to ensure that we don't set *latest_revnum to an
    uninitialized value.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1101580 13f79535-47bb-0310-9956-ffa450edef68

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