--- gtk+-3.24.9/gtk/gtkmodules.c.orig	2020-04-12 19:05:47.080315710 +0200
+++ gtk+-3.24.9/gtk/gtkmodules.c	2020-04-12 19:07:11.524606397 +0200
@@ -379,8 +379,12 @@
         {
           const gchar *error = g_module_error ();
 
-          g_message ("Failed to load module \"%s\"%s%s",
-                     name, error ? ": " : "", error ? error : "");
+          if (error)
+            {
+              g_message ("Failed to load module \"%s\": %s", name, error);
+            } else {
+              g_debug ("Failed to load module \"%s\"", name);
+            }
         }
     }