Fix run-test 089 (which has no files to delete).
Fix run-test 089 (which has no files to delete).

Change-Id: Ibaf542f4332ea722be17fd4ef29689c17d8f282a

treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst