message: Fix usage of app_location
diff: @@ -201,7 +201,9 @@ def run_tests(args):
  [True] if args.renderer == "scivis" else [True, False]
  tests_to_run = set([(name, sv) for name in tests_to_run for sv in use_sv_options])
  - exe = "{}/{}".format(args.app_location, EXE_NAME)
  + exe = EXE_NAME
  + if args.app_location != "":
  + exe = args.app_location + "/" + exe
  img_dir = DEFAULT_IMG_DIR
  # Create images directory
  