* subversion/tests/svn_test.h   (SVN_TEST_STRING_ASSERT): Allow either of the strings to be NULL.
* subversion/tests/svn_test.h
  (SVN_TEST_STRING_ASSERT): Allow either of the strings to be NULL.

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