[skip ci] Update .po files

Autobuild bot on TravisCI · Autobuild bot on TravisCI · commit f561045ffc08 · 2020-03-10T19:04:58.000+09:00
diff --git a/library/stdtypes.po b/library/stdtypes.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 05:24+0000\n"
+"PO-Revision-Date: 2020-03-09 16:15+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"
@@ -2527,7 +2527,7 @@ msgstr "set と *other* のいずれか一方だけに含まれる要素を持
 
 #: ../../library/stdtypes.rst:1912
 msgid "Return a shallow copy of the set."
-msgstr ""
+msgstr "集合の浅いコピーを返します。"
 
 #: ../../library/stdtypes.rst:1915
 msgid ""
