[gcab] Add Language headers to po files

[Piotr Drąg <piotrdrag src gnome org>]

commit 28499e3804dcfcd7f423e5a0cc0ba6157c6d4a23
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Sat Jul 16 18:37:18 2016 +0200

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

 po/nb.po       |    2 +-
 po/oc.po       |    2 +-
 po/pt.po       |    2 +-
 po/sl.po       |    2 +-
 po/sr latin po |    2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)
---
diff --git a/po/nb.po b/po/nb.po
index d08ce25..849412b 100644
--- a/po/nb.po
+++ b/po/nb.po
@@ -11,7 +11,7 @@ msgstr ""
 "PO-Revision-Date: 2014-07-25 14:19+0200\n"
 "Last-Translator: Kjartan Maraas <kmaraas gnome org>\n"
 "Language-Team: Norwegian bokmål <i18n-nb lister ping uio no>\n"
-"Language:nb \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/oc.po b/po/oc.po
index 712782c..b1a3b16 100644
--- a/po/oc.po
+++ b/po/oc.po
@@ -13,7 +13,7 @@ msgstr ""
 "PO-Revision-Date: 2015-05-30 19:26+0200\n"
 "Last-Translator: Cédric Valmary (Tot en òc) <cvalmary yahoo fr>\n"
 "Language-Team: Tot en òc (totenoc.eu)\n"
-"Language: fr\n"
+"Language: oc\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
diff --git a/po/pt.po b/po/pt.po
index 8eb1d02..eba0822 100644
--- a/po/pt.po
+++ b/po/pt.po
@@ -12,7 +12,7 @@ msgstr ""
 "PO-Revision-Date: 2015-08-26 06:35+0100\n"
 "Last-Translator: Pedro Albuquerque <palbuquerque73 gmail com>\n"
 "Language-Team: Português <palbuquerque73 gmail com>\n"
-"Language: pt_BR\n"
+"Language: pt\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 af3d355..38f78c0 100644
--- a/po/sl.po
+++ b/po/sl.po
@@ -13,7 +13,7 @@ msgstr ""
 "PO-Revision-Date: 2016-03-12 21:28+0100\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 49662a7..134ccbf 100644
--- a/po/sr latin po
+++ b/po/sr latin po
@@ -11,7 +11,7 @@ msgstr ""
 "PO-Revision-Date: 2015-12-30 09:58+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"