Add an XFAIL test.  Exporting a specific revision from a working copy with root-relative externals currently results in an assertion failure.
Add an XFAIL test.  Exporting a specific revision from a working copy
with root-relative externals currently results in an assertion failure.

* subversion/tests/cmdline/export_tests.py
  (export_revision_with_root_relative_external): Add new test.
  (test_list): Register the new test.

Patch by:  Doug Brown <doug{_AT_}schmorgal.com>


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1802080 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion