* subversion/include/svn_wc.h
  (svn_wc_merge5, svn_wc_merge_props3): Document the merging of properties
    a bit better.

git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1456117 13f79535-47bb-0310-9956-ffa450edef68