[gimp] Issue #3220 - "How to Use Dialogs" does not open any page.

[Michael Natterer <mitch src gnome org>]

commit cf892ba2f0fb445257a29c2d725190af11d86e15
Author: Sabri Ünal <libreajans gmail com>
Date:   Wed Apr 24 21:31:26 2019 +0000

    Issue #3220 - "How to Use Dialogs" does not open any page.
    
    (cherry picked from commit 45784e9f50edfb25d076883d6d578955cebdd27f)

 plug-ins/script-fu/scripts/gimp-online.scm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/plug-ins/script-fu/scripts/gimp-online.scm b/plug-ins/script-fu/scripts/gimp-online.scm
index fa265f8605..8d3569a918 100644
--- a/plug-ins/script-fu/scripts/gimp-online.scm
+++ b/plug-ins/script-fu/scripts/gimp-online.scm
@@ -26,7 +26,7 @@
 )
 
 (define (gimp-help-using-docks)
-  (gimp-help "" "gimp-using-docks")
+  (gimp-help "" "gimp-concepts-docks")
 )
 
 (define (gimp-help-using-simpleobjects)