[gnote] Update application copyright

[Aurimas Černius <aurimasc src gnome org>]

commit 1f3f8fdbce21bcb5c575844a8604dff715d41deb
Author: Aurimas Černius <aurisc4 gmail com>
Date:   Fri Jan 3 22:31:44 2020 +0200

    Update application copyright

 src/gnote.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/gnote.cpp b/src/gnote.cpp
index e828705e..f4bf3763 100644
--- a/src/gnote.cpp
+++ b/src/gnote.cpp
@@ -1,7 +1,7 @@
 /*
  * gnote
  *
- * Copyright (C) 2010-2019 Aurimas Cernius
+ * Copyright (C) 2010-2020 Aurimas Cernius
  * Copyright (C) 2010 Debarshi Ray
  * Copyright (C) 2009 Hubert Figuiere
  *
@@ -291,7 +291,7 @@ namespace gnote {
     about.set_program_name("Gnote");
     about.set_version(VERSION);
     about.set_logo(m_icon_manager.get_icon(IconManager::GNOTE, 48));
-    about.set_copyright(_("Copyright \xc2\xa9 2010-2019 Aurimas Cernius\n"
+    about.set_copyright(_("Copyright \xc2\xa9 2010-2020 Aurimas Cernius\n"
                           "Copyright \xc2\xa9 2009-2011 Debarshi Ray\n"
                           "Copyright \xc2\xa9 2009 Hubert Figuiere\n"
                           "Copyright \xc2\xa9 2004-2009 the Tomboy original authors."));