[gnome-builder] gui: add mnemonics to dialog buttons

[Christian Hergert <chergert src gnome org>]

commit 6954ddebdfeaca3195f0a2e6de23c30b4cb7b0dd
Author: Christian Hergert <chergert redhat com>
Date:   Wed Dec 4 11:54:58 2019 -0800

    gui: add mnemonics to dialog buttons

 src/libide/gui/ide-workbench.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/libide/gui/ide-workbench.c b/src/libide/gui/ide-workbench.c
index 59319a391..430c301d4 100644
--- a/src/libide/gui/ide-workbench.c
+++ b/src/libide/gui/ide-workbench.c
@@ -1420,8 +1420,8 @@ ide_workbench_action_open (IdeWorkbench *self,
   chooser = gtk_file_chooser_native_new (_("Open File…"),
                                          GTK_WINDOW (workspace),
                                          GTK_FILE_CHOOSER_ACTION_OPEN,
-                                         _("Open"),
-                                         _("Cancel"));
+                                         _("_Open"),
+                                         _("_Cancel"));
   gtk_native_dialog_set_modal (GTK_NATIVE_DIALOG (chooser), FALSE);
   gtk_file_chooser_set_local_only (GTK_FILE_CHOOSER (chooser), FALSE);
   gtk_file_chooser_set_select_multiple (GTK_FILE_CHOOSER (chooser), TRUE);