howcase_helper: syntax fixes

showcase_helper.py

@@ -90,6 +90,6 @@ print(list(files.keys()))
 # get rid of files
 print("Removing files")
 deleted = helper.delete(globushl.EP_BLUEWATERS_DUO, [harefile, kenneldir], recursive=True)
-print("Success: %s" % deleted['status']))
+print("Success: %s" % deleted['status'])
 
 print("All done")