functions: fixed term not in glossary bug

Author: Nienzu

library/functions.po

@@ -532,7 +532,7 @@ msgid ""
 "The ``@classmethod`` form is a function :term:`decorator` -- see the "
 "description of function definitions in :ref:`function` for details."
 msgstr ""
-"``@classmethod`` 語法是一個函式 :term:` 裝飾器 ` —  參見 :ref:`function` 中關"
+"``@classmethod`` 語法是一個函式 :term:`decorator` —  參見 :ref:`function` 中關"
 "於函式定義的詳細介紹。"
 
 #: ../../library/functions.rst:216