Update some documentation to avoid regressions as the one fixed in r1703689.
Update some documentation to avoid regressions as the one fixed in r1703689.

* subversion/libsvn_client/client.h
  (svn_client__get_normalized_stream):
     Following up on r1703689, tweak documentation.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1704825 13f79535-47bb-0310-9956-ffa450edef68

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