[skip ci] Update .po files

Autobuild bot on TravisCI · Autobuild bot on TravisCI · commit e6e79d16a26b · 2018-12-20T15:14:13.000+09:00
diff --git a/c-api/buffer.po b/c-api/buffer.po
@@ -10,7 +10,7 @@ msgstr ""
 "Project-Id-Version: Python 2.7\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2018-12-07 15:07+0900\n"
-"PO-Revision-Date: 2018-12-07 06:11+0000\n"
+"PO-Revision-Date: 2018-12-19 22:58+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"
@@ -125,7 +125,7 @@ msgstr "長さ :c:data:`ndim` の :c:type:`Py_ssize_t` の配列。 suboffset 
 msgid ""
 "If all suboffsets are negative (i.e. no de-referencing is needed), then this"
 " field must be NULL (the default value)."
-msgstr ""
+msgstr "全ての suboffset が負数の場合 (つまり参照解決が不要) な場合、このフィールドは NULL (デフォルト値) でなければなりません。"
 
 #: ../../c-api/buffer.rst:104
 msgid ""
