Fix a few tests to properly clean up after running.
Fix a few tests to properly clean up after running.

* subversion/tests/libsvn_client/client-test.c
  (test_foreign_repos_copy,
   test_remote_only_status): Register everything we create as to be cleaned up.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1704511 13f79535-47bb-0310-9956-ffa450edef68

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