Update scripts/extract_vlac2_release_frames.py for direct data extraction layout

scripts/extract_vlac2_release_frames.py

@@ -53,13 +53,13 @@ def parse_args() -> argparse.Namespace:
         "--release-root",
         type=Path,
         required=True,
-        help="Release root containing benchmark_splits/ and vlac2_release_data/.",
+        help="Release root containing benchmark_splits/, data/, and scripts/.",
     )
     parser.add_argument(
         "--raw-root",
         type=Path,
         default=None,
-        help="Override raw release data root. Defaults to <release-root>/vlac2_release_data.",
+        help="Override raw video root. Defaults to <release-root>/data.",
     )
     parser.add_argument(
         "--output-root",