Add a regression test for issue 4060, spurious authz denied when svnserve root is a repository.
Add a regression test for issue 4060, spurious authz denied when
svnserve root is a repository.

* subversion/test/libsvn_repos/repos-test.c
  (issue_4060): New test.
  (test_funcs): Add new test.

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