[frogr] Updated Copyright year

[Mario Sanchez Prada <msanchez src gnome org>]

commit 4734e1d810de9a8d89fd802aebb2982f0c456b27
Author: Mario Sanchez Prada <msanchez gnome org>
Date:   Fri Jan 10 23:28:54 2020 +0100

    Updated Copyright year

 COPYING                             | 2 +-
 README                              | 2 +-
 data/org.gnome.frogr.appdata.xml.in | 2 +-
 src/frogr-controller.c              | 2 +-
 src/frogr-photoset.c                | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)
---
diff --git a/COPYING b/COPYING
index de541a1..1a4dca1 100644
--- a/COPYING
+++ b/COPYING
@@ -1,4 +1,4 @@
-frogr is (C) 2009-2018 Mario Sanchez Prada <msanchez gnome org> and
+frogr is (C) 2009-2020 Mario Sanchez Prada <msanchez gnome org> and
 is licensed under the following terms:
 
                     GNU GENERAL PUBLIC LICENSE
diff --git a/README b/README
index c96212c..31659ff 100644
--- a/README
+++ b/README
@@ -30,7 +30,7 @@ Mailing list: http://mail.gnome.org/mailman/listinfo/frogr-list
 
 -------------------------------------------
 
-frogr is Copyright (c) 2009-2018 Mario Sanchez Prada
+frogr is Copyright (c) 2009-2020 Mario Sanchez Prada
 
 https://wiki.gnome.org/Apps/Frogr
 
diff --git a/data/org.gnome.frogr.appdata.xml.in b/data/org.gnome.frogr.appdata.xml.in
index 7aeae11..bc363ca 100644
--- a/data/org.gnome.frogr.appdata.xml.in
+++ b/data/org.gnome.frogr.appdata.xml.in
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!-- Copyright 2009-2018 Mario Sanchez Prada <msanchez gnome org> -->
+<!-- Copyright 2009-2020 Mario Sanchez Prada <msanchez gnome org> -->
 <component type="desktop">
   <id>org.gnome.frogr.desktop</id>
   <metadata_license>CC0-1.0</metadata_license>
diff --git a/src/frogr-controller.c b/src/frogr-controller.c
index 1084468..e382dbc 100644
--- a/src/frogr-controller.c
+++ b/src/frogr-controller.c
@@ -1,7 +1,7 @@
 /*
  * frogr-controller.c -- Controller of the whole application
  *
- * Copyright (C) 2009-2018 Mario Sanchez Prada
+ * Copyright (C) 2009-2020 Mario Sanchez Prada
  * Authors: Mario Sanchez Prada <msanchez gnome org>
  *
  * This program is free software; you can redistribute it and/or
diff --git a/src/frogr-photoset.c b/src/frogr-photoset.c
index c6c82e1..9178c9e 100644
--- a/src/frogr-photoset.c
+++ b/src/frogr-photoset.c
@@ -1,7 +1,7 @@
 /*
  * frogr-photoset.c -- An set in frogr (a photoset from flickr)
  *
- * Copyright (C) 2010-2012 Mario Sanchez Prada
+ * Copyright (C) 2010-2020 Mario Sanchez Prada
  * Authors: Mario Sanchez Prada <msanchez gnome org>
  *
  * This program is free software; you can redistribute it and/or