Update Traditional Chinese programs translation

Closes: #687002

[guillem@debian.org:
 - Correctly index format arguments.
 - Add missing format arguments.
 - Use format arguments instead of literal strings.
 - Use | instead of / for command argument separator. ]

Signed-off-by: Guillem Jover <guillem@debian.org>

debian/changelog

@@ -10,6 +10,7 @@ dpkg (1.16.9) UNRELEASED; urgency=low
   [ Updated programs translations ]
   * Czech (Miroslav Kure).
   * Portuguese (Miguel Figueiredo). Closes: #682582
+  * Traditional Chinese (imacat). Closes: #687002
 
   [ Updated scripts translations ]
   * Polish (Michał Kułach). Closes: #683104