On the 'move-tracking-2' branch: Add some API documentation, following r1683383.
On the 'move-tracking-2' branch: Add some API documentation,
following r1683383.

* subversion/include/private/svn_editor3e.h
  (svn_editor3_payload_resolve): Document. Move to a more
    appropriate place in the header file.

git-svn-id: 486ec3464084f62cfe8608152673c827b947faa2@1683482 13f79535-47bb-0310-9956-ffa450edef68

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