[skip ci] Update .po files

Author: Autobuild bot on TravisCI

copyright.po

@@ -7,8 +7,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Python 2.7\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2020-01-01 18:32+0900\n"
-"PO-Revision-Date: 2019-08-12 11:48+0000\n"
+"POT-Creation-Date: 2020-01-03 18:33+0900\n"
+"PO-Revision-Date: 2020-01-03 09:35+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"
@@ -26,8 +26,8 @@ msgid "Python and this documentation is:"
 msgstr "Python and this documentation is:"
 
 #: /home/travis/build/python/cpython-doc-catalog/Doc/copyright.rst:7
-msgid "Copyright © 2001-2019 Python Software Foundation. All rights reserved."
-msgstr "Copyright © 2001-2019 Python Software Foundation. All rights reserved."
+msgid "Copyright © 2001-2020 Python Software Foundation. All rights reserved."
+msgstr ""
 
 #: /home/travis/build/python/cpython-doc-catalog/Doc/copyright.rst:9
 msgid "Copyright © 2000 BeOpen.com. All rights reserved."