On the dont-save-plaintext-passwords-by-default branch, fix a core dump triggered by the ra_local test suite.
On the dont-save-plaintext-passwords-by-default branch, fix a core
dump triggered by the ra_local test suite.

* subversion/libsvn_ra/ra_loader.c
  (svn_ra_open3): Only store parameters if auth_baton isn't NULL.


git-svn-id: 795c9555c6d2bdebfcd537af79826e3445822951@871115 13f79535-47bb-0310-9956-ffa450edef68

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