bin/build_search_documents.py: do not use the deprecated .getchildren()

```
Deprecated since version 3.2, will be removed in version 3.9: Use
list(elem) or iteration.
```

Suggested-by: Michał Górny <mgorny@gentoo.org>
Signed-off-by: Göktürk Yüksek <gokturk@gentoo.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/bin/build_search_documents.py b/bin/build_search_documents.py
index e19dce6..37b6af9 100755
--- a/bin/build_search_documents.py
+++ b/bin/build_search_documents.py
@@ -30,7 +30,7 @@ def stringify_node(parent: ET.Element) -> str:
     # along with the tail text following it.
     # The tail may include '\n' if it spans multiple lines.
     # We will worry about those on return, not now.
-    for child in parent.getchildren():
+    for child in parent:
         # The '<d/>' tag is simply a fancier '-' character
         if child.tag == 'd':
             text += '-'