* subversion/libsvn_ra_serf/serf.c   (svn_ra_serf__open): Following up on r1575319, add comment.
* subversion/libsvn_ra_serf/serf.c
  (svn_ra_serf__open): Following up on r1575319, add comment.

Suggested by: ivan


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1576313 13f79535-47bb-0310-9956-ffa450edef68

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