[gimp] app: gimp-register-magic-load-handler renamed in a previous commit.

[Jehan <jehanp src gnome org>]

commit b73519830e628f72de140bb5662f06382718ef1b
Author: Jehan <jehan girinstud io>
Date:   Tue Sep 10 15:01:16 2019 +0200

    app: gimp-register-magic-load-handler renamed in a previous commit.
    
    Cf. commit 0745043ddbf0a38cb94edf69fa149709488ca68c.

 app/plug-in/gimppluginmanager-restore.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/app/plug-in/gimppluginmanager-restore.c b/app/plug-in/gimppluginmanager-restore.c
index e6fd9b1711..031421ae6b 100644
--- a/app/plug-in/gimppluginmanager-restore.c
+++ b/app/plug-in/gimppluginmanager-restore.c
@@ -853,7 +853,7 @@ gimp_plug_in_manager_add_to_db (GimpPlugInManager   *manager,
           return_vals =
             gimp_pdb_execute_procedure_by_name (manager->gimp->pdb,
                                                 context, NULL, &error,
-                                                "gimp-register-magic-load-handler",
+                                                "gimp-register-load-handler",
                                                 G_TYPE_STRING, gimp_object_get_name (proc),
                                                 G_TYPE_STRING, proc->extensions,
                                                 G_TYPE_STRING, proc->prefixes,