Issue with Russian and German po files

[vp1981]

Hello, currently distributed ru.po and de.po files don't have value for Language setting. The patch below fixes this issue.

From 51a043d714e6196d869e9a7a646a2c1338ff5174 Mon Sep 17 00:00:00 2001
From: Vladimir Lomov <vladimir@node2-smoon7.bkoty.ru>
Date: Wed, 1 Jul 2020 11:34:25 +0800
Subject: [PATCH 1/3] po: fix issue with missing Language code

Signed-off-by: Vladimir Lomov <vladimir@node2-smoon7.bkoty.ru>
---
 xneur/po/de.po | 2 +-
 xneur/po/ru.po | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/xneur/po/de.po b/xneur/po/de.po
index bedbb03..cae94dc 100644
--- a/xneur/po/de.po
+++ b/xneur/po/de.po
@@ -11,7 +11,7 @@ msgstr ""
 "PO-Revision-Date: 201-01-29 10:33+0300\n"
 "Last-Translator: Photon <michael.kogan@gmx.net>\n"
 "Language-Team: German\n"
-"Language: \n"
+"Language: de\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
diff --git a/xneur/po/ru.po b/xneur/po/ru.po
index 954396f..75b384d 100644
--- a/xneur/po/ru.po
+++ b/xneur/po/ru.po
@@ -10,7 +10,7 @@ msgstr ""
 "PO-Revision-Date: 201-01-29 10:33+0300\n"
 "Last-Translator: Andrew Kuznetsov\n"
 "Language-Team: Russian\n"
-"Language: \n"
+"Language: ru\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-- 
2.27.0