ra_svn: Make SASL auth's behavior like simple auth.
ra_svn: Make SASL auth's behavior like simple auth.

* subversion/libsvn_ra_svn/sasl_auth.c
  Bump copyright year.
  (handle_interact): Check that CREDS is available before using it.

Patch by: kou


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@862965 13f79535-47bb-0310-9956-ffa450edef68

wbond/subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion