[gtk/wip/matthiasc/shortcut] Print mnemonic triggers clearly

[Matthias Clasen <matthiasc src gnome org>]

commit 82710108693a1b7053f122866cd3ec25de5191a9
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Mar 15 22:10:39 2020 -0400

    Print mnemonic triggers clearly

 gtk/gtkshortcuttrigger.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/gtk/gtkshortcuttrigger.c b/gtk/gtkshortcuttrigger.c
index 4990677755..dce75a1191 100644
--- a/gtk/gtkshortcuttrigger.c
+++ b/gtk/gtkshortcuttrigger.c
@@ -716,6 +716,7 @@ gtk_mnemonic_trigger_print (GtkShortcutTrigger *trigger,
   if (keyval_str == NULL)
     keyval_str = "???";
 
+  g_string_append (string, "<Mnemonic>");
   g_string_append (string, keyval_str);
 }