...to the Configure Keyboard Shortcuts dialog
Add the button, based on an old patch from Sven Neumann, and make the
buttons in the keyboard shortcuts and input devices dialogs look and
behave the same.
(cherry picked from commit 04b69e2494)
Nobody has them anymore, and they are deprecated in GTK+ 3.x. This
also fixes all conflicting mnemonics except those I missed, but we can
fix them now.
because the packing options are different for GtkH/VBox and GtkBox
itself which is now instantiable. Instead, always use
gtk_box_pack_start() and specify expanding explicitely.