[gnome-backgrounds] Update Polish translation

[Piotr Drąg <piotrdrag src gnome org>]

commit a80479bb475ea0c269cf5def4514e0daff63c7ff
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Tue Aug 20 18:30:20 2019 +0200

    Update Polish translation

 po/pl.po | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)
---
diff --git a/po/pl.po b/po/pl.po
index 6a4741e..912740e 100644
--- a/po/pl.po
+++ b/po/pl.po
@@ -11,8 +11,8 @@ msgstr ""
 "Project-Id-Version: gnome-backgrounds\n"
 "Report-Msgid-Bugs-To: https://gitlab.gnome.org/GNOME/gnome-backgrounds/";
 "issues\n"
-"POT-Creation-Date: 2019-01-03 17:41+0000\n"
-"PO-Revision-Date: 2019-01-17 11:55+0100\n"
+"POT-Creation-Date: 2019-06-05 08:42+0000\n"
+"PO-Revision-Date: 2019-08-20 18:30+0200\n"
 "Last-Translator: Piotr Drąg <piotrdrag gmail com>\n"
 "Language-Team: Polish <community-poland mozilla org>\n"
 "Language: pl\n"
@@ -27,8 +27,8 @@ msgid "Default Background"
 msgstr "Domyślne tło"
 
 #: backgrounds/gnome-backgrounds.xml.in.in:5
-msgid "Rain Drops"
-msgstr "Krople deszczu"
+msgid "Light Waves"
+msgstr "Fale świetlne"
 
 #: backgrounds/gnome-backgrounds.xml.in.in:12
 msgid "Cold &amp; Warm"
@@ -47,8 +47,8 @@ msgid "Pink Fabric"
 msgstr "Niebieski materiał"
 
 #: backgrounds/gnome-backgrounds.xml.in.in:40
-msgid "Flower Bed"
-msgstr "Kwiaty"
+msgid "Acrylic"
+msgstr "Akryl"
 
 #: backgrounds/gnome-backgrounds.xml.in.in:47
 msgid "Icescape"
@@ -67,8 +67,8 @@ msgid "Road"
 msgstr "Droga"
 
 #: backgrounds/gnome-backgrounds.xml.in.in:75
-msgid "Sandstone"
-msgstr "Skały"
+msgid "Color Stripes"
+msgstr "Kolorowe paski"
 
 #: backgrounds/gnome-backgrounds.xml.in.in:82
 msgid "Symbolics 1"