[skip ci] Update .po files

Autobuild bot on TravisCI · Autobuild bot on TravisCI · commit 3f4fc9e7e650 · 2018-08-25T14:10:53.000+09:00
diff --git a/library/unittest.po b/library/unittest.po
@@ -10,8 +10,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Python 2.7\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2018-05-17 13:19+0900\n"
-"PO-Revision-Date: 2018-05-17 04:32+0000\n"
+"POT-Creation-Date: 2018-08-24 14:11+0900\n"
+"PO-Revision-Date: 2018-08-24 05:21+0000\n"
 "Last-Translator: tomo🐧\n"
 "Language-Team: Japanese (http://www.transifex.com/python-doc/python-27/language/ja/)\n"
 "MIME-Version: 1.0\n"
@@ -848,10 +848,10 @@ msgstr "テストメソッドが実行され、結果が記録された直後に
 
 #: ../../library/unittest.rst:733
 msgid ""
-"A class method called before tests in an individual class run. "
+"A class method called before tests in an individual class are run. "
 "``setUpClass`` is called with the class as the only argument and must be "
 "decorated as a :func:`classmethod`::"
-msgstr "クラス内に定義されたテストが実行される前に呼び出されるクラスメソッドです。 ``setUpClass`` はクラスを唯一の引数として取り、 :func:`classmethod` でデコレートされている必要があります::"
+msgstr ""
 
 #: ../../library/unittest.rst:741 ../../library/unittest.rst:756
 msgid "See `Class and Module Fixtures`_ for more details."
