Fix a SEGFAULT in the C test framework.
Fix a SEGFAULT in the C test framework.

* subversion/tests/svn_test_fs.c
  (svn_test__validate_tree): Catch and clear a returned error to keep
    from triggering assertions that check for such things.

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