[gtksourceview] vim: implement ={motion} including ==

[Christian Hergert <chergert src gnome org>]

commit 49a8b8873edae74170c5747c41a087066cf36e3f
Author: Christian Hergert <chergert redhat com>
Date:   Fri Nov 26 11:27:02 2021 -0600

    vim: implement ={motion} including ==

 gtksourceview/vim/gtksourcevimnormal.c | 6 ++++++
 1 file changed, 6 insertions(+)
---
diff --git a/gtksourceview/vim/gtksourcevimnormal.c b/gtksourceview/vim/gtksourcevimnormal.c
index d2d61bc7..38fde578 100644
--- a/gtksourceview/vim/gtksourcevimnormal.c
+++ b/gtksourceview/vim/gtksourcevimnormal.c
@@ -663,6 +663,12 @@ key_handler_command (GtkSourceVimNormal *self,
                        return TRUE;
 
                case GDK_KEY_equal:
+                       gtk_source_vim_normal_begin_command (self,
+                                                            NULL,
+                                                            gtk_source_vim_motion_new_none (),
+                                                            "filter", GDK_KEY_equal);
+                       return TRUE;
+
                case GDK_KEY_plus:
                default:
                        break;