fix(rename-children): Remove empty directories

rename_children.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python3.10
+#!/usr/bin/env python3
 
 import argparse
 import dataclasses
@@ -56,6 +56,14 @@ def rename_children(source_dir: Path, flatten: bool) -> None:
 
     write_undo_script(Path.cwd(), jobs)
 
+    remove_empty_dirs(source_dir)
+
+
+def remove_empty_dirs(root: Path) -> None:
+    for path in sorted(root.rglob("*"), reverse=True):
+        if path.is_dir() and not any(path.iterdir()):
+            path.rmdir()
+
 
 @dataclasses.dataclass
 class MoveOp: