Whoa!  Followup to a Boxing Day Blunder (r34939): Use the return pointer to set the checksum to NULL.
Whoa!  Followup to a Boxing Day Blunder (r34939): Use the return pointer to
set the checksum to NULL.

* subversion/libsvn_subr/checksum.c
  (svn_checksum_parse_hex): Set the output pointer.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@875015 13f79535-47bb-0310-9956-ffa450edef68

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