r1766585 | stsp | 2016-10-25 19:30:06 +0000 (Tue, 25 Oct 2016)
Fix a spurious test failure on OpenBSD due to a bug in the test:
subversion/tests/libsvn_subr/xml-test.c:184: (apr_err=SVN_ERR_TEST_FAILED)
svn_tests: E200006: Got unxpected error '(null)'
FAIL: xml-test 4: test svn_xml_signal_bailout() for invalid XML
* subversion/tests/libsvn_subr/xml-test.c
(test_invalid_xml_signal_bailout): SVN_TEST_ASSERT_ANY_ERROR() will clear the
error so make a copy of its status value and use it instead of err->apr_err.
Found by: bb-openbsd buildbot