Follow up to r21621: fix the tests by adding the missing result of a test case.
Follow up to r21621: fix the tests by adding the missing result of a test case.

* subversion/tests/libsvn_subr/path-test.c
  (test_is_root): added missing return value FALSE for test path = "".

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