[gimp-help] Updated translation copyright date

[Marco Ciampa <marcoc src gnome org>]

commit 315dcea670ee8014904e67baa96d20bdeefaa2cb
Author: Marco Ciampa <ciampix posteo net>
Date:   Wed Nov 17 08:30:57 2021 +0100

    Updated translation copyright date

 src/gimp.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/gimp.xml b/src/gimp.xml
index 98268e4b0..41d3f2c28 100644
--- a/src/gimp.xml
+++ b/src/gimp.xml
@@ -26,7 +26,7 @@
     <title>GNU Image Manipulation Program</title>
     <subtitle>User Manual</subtitle>
     <copyright>
-      <year>2002-2020</year>
+      <year>2002-2021</year>
       <holder>The GIMP Documentation Team</holder>
     </copyright>
     <legalnotice>