* subversion/libsvn_repos/log.c   (detect_changed): Explicitly pass NULL for authz when there is none.                     This makes it easier for compilers to employ                     constant propagation and eliminate used code paths.
* subversion/libsvn_repos/log.c
  (detect_changed): Explicitly pass NULL for authz when there is none.
                    This makes it easier for compilers to employ
                    constant propagation and eliminate used code paths.


git-svn-id: 1f1d32df43057f8baf3569895afdc221b0c15aad@1617686 13f79535-47bb-0310-9956-ffa450edef68

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