fix(unittest.mock): render error (#732)

Author: mattwang44

library/unittest.mock.po

@@ -688,8 +688,8 @@ msgid ""
 "As well as tracking calls to themselves, mocks also track calls to methods "
 "and attributes, and *their* methods and attributes:"
 msgstr ""
-"除了追蹤對自身的呼叫之外，mock 還會追蹤對方法和屬性的呼降，以及*它們（這些方"
-"法和屬性）*\\ 的方法和屬性："
+"除了追蹤對自身的呼叫之外，mock 還會追蹤對方法和屬性的呼叫，以及\\ *它們（這些"
+"方法和屬性）*\\ 的方法和屬性："
 
 #: ../../library/unittest.mock.rst:692
 msgid ""