Adding upstream version 4.5.0+dfsg.

Signed-off-by: Daniel Baumann <daniel@debian.org>

pre_commit_hooks/check_xml.py

@@ -0,0 +1,26 @@
+from __future__ import annotations
+
+import argparse
+import xml.sax.handler
+from typing import Sequence
+
+
+def main(argv: Sequence[str] | None = None) -> int:
+    parser = argparse.ArgumentParser()
+    parser.add_argument('filenames', nargs='*', help='XML filenames to check.')
+    args = parser.parse_args(argv)
+
+    retval = 0
+    handler = xml.sax.handler.ContentHandler()
+    for filename in args.filenames:
+        try:
+            with open(filename, 'rb') as xml_file:
+                xml.sax.parse(xml_file, handler)
+        except xml.sax.SAXException as exc:
+            print(f'{filename}: Failed to xml parse ({exc})')
+            retval = 1
+    return retval
+
+
+if __name__ == '__main__':
+    raise SystemExit(main())