mailcap: use dump-docx.py to dump .docx files

bin/dump-docx.py

@@ -0,0 +1,14 @@
+#!/usr/bin/env python
+import sys
+
+# python-docx
+import docx
+
+if len(sys.argv) < 2:
+    print(f"Usage: {sys.argv[0]} <document> [document ...]")
+
+for fn in sys.argv[1:]:
+    print(f"\n{fn}:\n")
+    doc = docx.Document(fn)
+    for p in doc.paragraphs:
+        print(p.text)