[gimp-help] Revert "web: update the copyright dates."

[Jehan <jehanp src gnome org>]

commit f943039b0323db739ad2da858135d2490e0d9483
Author: Jehan <jehan girinstud io>
Date:   Wed Feb 23 15:14:24 2022 +0100

    Revert "web: update the copyright dates."
    
    This reverts commit 03e277abdf884c879338692da535d151ec41a60f.
    
    Oups I had not realized that Jacob had already taken care of it in the
    gimp-help-2-10 branch in a much more elegant and future-proof way. Also
    it seems that testing.docs.gimp.org is meant to follow this 2.10 branch,
    not the `master` branch anyway.
    
    Reverting to avoid merge conflicts later on. I'll let Jacob cherry-pick
    the right commit later.

 web/layout.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/web/layout.xml b/web/layout.xml
index dda9c29e7..e6a876b7e 100644
--- a/web/layout.xml
+++ b/web/layout.xml
@@ -4,7 +4,7 @@
 
 <layout>
   <copyright>
-    <year>2001—2022</year>
+    <year>2001—2018</year>
     <holder role="gimp-help">The GIMP Help Team (Graphics by Jakub Steiner)</holder>
   </copyright>
   <style src="style.css" type="text/css" />