[skip ci] Update .po files

Author: Autobuild bot on TravisCI

library/test.po

@@ -10,7 +10,7 @@ msgstr ""
 "Project-Id-Version: Python 2.7\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2020-02-09 18:46+0900\n"
-"PO-Revision-Date: 2019-09-01 05:18+0000\n"
+"PO-Revision-Date: 2020-05-07 14:02+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"
@@ -277,7 +277,7 @@ msgstr "テンポラリファイルの名前として安全に利用できる名
 
 #: ../../library/test.rst:252
 msgid "Define the URL of a dedicated HTTP server for the network tests."
-msgstr ""
+msgstr "ネットワークテスト専用の HTTP サーバーの URL を定義します。"
 
 #: ../../library/test.rst:254
 msgid "The :mod:`test.support` module defines the following functions:"