[gnome-tweak-tool] Add Language headers to po files

[Piotr Drąg <piotrdrag src gnome org>]

commit 37b4c0e323a21682ee0bede5361bb101b1584c67
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Thu Jul 21 21:32:25 2016 +0200

    Add Language headers to po files
    
    Future versions of gettext will fail if this header is missing.

 po/ca valencia po |    2 +-
 po/es.po          |    2 +-
 po/nb.po          |    2 +-
 po/ne.po          |    2 +-
 po/sl.po          |    2 +-
 po/sr latin po    |    2 +-
 po/zh_HK.po       |    2 +-
 7 files changed, 7 insertions(+), 7 deletions(-)
---
diff --git a/po/ca valencia po b/po/ca valencia po
index 0eba8b3..2766f30 100644
--- a/po/ca valencia po
+++ b/po/ca valencia po
@@ -17,7 +17,7 @@ msgstr ""
 "PO-Revision-Date: 2014-03-10 07:12+0100\n"
 "Last-Translator: Pau Iranzo <paugnu gmail com>\n"
 "Language-Team: Catalan <tradgnome softcatala org>\n"
-"Language: ca-XV\n"
+"Language: ca@valencia\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bits\n"
diff --git a/po/es.po b/po/es.po
index d8d829c..5d01cec 100644
--- a/po/es.po
+++ b/po/es.po
@@ -14,7 +14,7 @@ msgstr ""
 "PO-Revision-Date: 2016-04-21 11:40+0200\n"
 "Last-Translator: Daniel Mustieles <daniel mustieles gmail com>\n"
 "Language-Team: Español; Castellano <gnome-es-list gnome org>\n"
-"Language: \n"
+"Language: es\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
diff --git a/po/nb.po b/po/nb.po
index 25752f1..5a37a85 100644
--- a/po/nb.po
+++ b/po/nb.po
@@ -12,7 +12,7 @@ msgstr ""
 "PO-Revision-Date: 2016-05-01 14:52+0200\n"
 "Last-Translator: Kjartan Maraas <kmaraas gnome org>\n"
 "Language-Team: Norwegian bokmål <i18n-nb lister ping uio no>\n"
-"Language: \n"
+"Language: nb\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
diff --git a/po/ne.po b/po/ne.po
index 581a139..967a417 100644
--- a/po/ne.po
+++ b/po/ne.po
@@ -11,7 +11,7 @@ msgstr ""
 "PO-Revision-Date: 2014-09-20 14:22+0400\n"
 "Last-Translator: Pawan Chitrakar <chautari gmail com>\n"
 "Language-Team: Nepali Translation Team <chautari gmail com>\n"
-"Language: \n"
+"Language: ne\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
diff --git a/po/sl.po b/po/sl.po
index 3b730a5..4467c1f 100644
--- a/po/sl.po
+++ b/po/sl.po
@@ -14,7 +14,7 @@ msgstr ""
 "PO-Revision-Date: 2016-05-02 20:44+0200\n"
 "Last-Translator: Matej Urbančič <mateju svn gnome org>\n"
 "Language-Team: Slovenian GNOME Translation Team <gnome-si googlegroups com>\n"
-"Language: sl_SI\n"
+"Language: sl\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
diff --git a/po/sr latin po b/po/sr latin po
index 711a34a..4cc2c97 100644
--- a/po/sr latin po
+++ b/po/sr latin po
@@ -12,7 +12,7 @@ msgstr ""
 "PO-Revision-Date: 2016-02-18 21:59+0200\n"
 "Last-Translator: Miroslav Nikolić <miroslavnikolic rocketmail com>\n"
 "Language-Team: Serbian <gnom prevod org>\n"
-"Language: sr\n"
+"Language: sr@latin\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
diff --git a/po/zh_HK.po b/po/zh_HK.po
index 74e1892..88557a6 100644
--- a/po/zh_HK.po
+++ b/po/zh_HK.po
@@ -13,7 +13,7 @@ msgstr ""
 "PO-Revision-Date: 2014-01-28 20:27+0800\n"
 "Last-Translator: Cheng-Chia Tseng <pswo10680 gmail com>\n"
 "Language-Team: Chinese (Hong Kong) <community linuxhall org>\n"
-"Language: zh_TW\n"
+"Language: zh_HK\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"