Don't allow arbitrary strings for the value of the 'SVNPathAuthz' directive.
Don't allow arbitrary strings for the value of the 'SVNPathAuthz' directive.

* subversion/mod_dav_svn/mod_dav_svn.c
  (SVNPathAuthz_cmd): Error out when value not in ['on', 'off', 'short_circuit'].

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion