On the patch-exec branch: tests: Use the pristine repository.
On the patch-exec branch: tests: Use the pristine repository.

* subversion/tests/cmdline/patch_tests.py
  (patch_adds_executability_nocontents, patch_adds_executability_yescontents):
     Request a read-only sandbox.
  (patch_adds_executability_yescontents):
     Ditto.  Avoid making a commit, adjust expectations accordingly.

git-svn-id: ddd4da0a1a688e20f0170b3d0a87346acd244cf3@1694568 13f79535-47bb-0310-9956-ffa450edef68

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