Fix a printf format-string insecurity. A follow-up to r1030536. Found by my compiler.
Fix a printf format-string insecurity. A follow-up to r1030536. Found by
my compiler.

* subversion/mod_authz_svn/mod_authz_svn.c
  (get_access_conf): Insert the error message using "%s" rather than directly
    as the format string argument.

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