[gnome-sudoku] Update German translation

[Translations User D-L <translations src gnome org>]

commit 0d36dfcface14eb1c96bc38f7d35cf02fb9877c0
Author: Mario Blättermann <mario blaettermann gmail com>
Date:   Sat Aug 11 16:50:14 2018 +0000

    Update German translation

 help/de/de.po | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/help/de/de.po b/help/de/de.po
index f86b742..b872e69 100644
--- a/help/de/de.po
+++ b/help/de/de.po
@@ -6,15 +6,15 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: gnome-games master\n"
-"POT-Creation-Date: 2017-12-30 13:59+0000\n"
-"PO-Revision-Date: 2018-01-01 16:12+0100\n"
+"POT-Creation-Date: 2018-08-07 13:45+0000\n"
+"PO-Revision-Date: 2018-08-11 18:49+0200\n"
 "Last-Translator: Mario Blättermann <mario blaettermann gmail com>\n"
 "Language-Team: Deutsch <gnome-de gnome org>\n"
 "Language: de_DE\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"X-Generator: Poedit 2.0.5\n"
+"X-Generator: Poedit 2.1\n"
 
 #. Put one translator per line, in the form NAME <EMAIL>, YEAR1, YEAR2
 msgctxt "_"
@@ -684,7 +684,7 @@ msgstr ""
 
 #. (itstool) path: item/p
 #: C/print-blank-puzzles.page:32
-msgid "Select difficult level of the games you would like to print."
+msgid "Select the difficulty level of the games you would like to print."
 msgstr "Wählen Sie den Schwierigkeitsgrad der auszudruckenden Spiele aus."
 
 #. (itstool) path: item/p