[gnome-builder] Fix l10n in Glade plugin

[Christian Hergert <chergert src gnome org>]

commit 0720e013633748d531e9d5f8506268057db28ed9
Author: Ricardo Silva Veloso <ricvelozo gmail com>
Date:   Tue Jan 14 22:34:15 2020 -0300

    Fix l10n in Glade plugin

 src/plugins/glade/gbp-glade-page.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/plugins/glade/gbp-glade-page.c b/src/plugins/glade/gbp-glade-page.c
index 2b88c3172..75798aeed 100644
--- a/src/plugins/glade/gbp-glade-page.c
+++ b/src/plugins/glade/gbp-glade-page.c
@@ -605,7 +605,7 @@ gbp_glade_page_init (GbpGladePage *self)
                              "action-target", param,
                              "child", image,
                              "has-tooltip", TRUE,
-                             "tooltip-text", pointers[i].tooltip,
+                             "tooltip-text", gettext(pointers[i].tooltip),
                              "visible", TRUE,
                              NULL);
       dzl_gtk_widget_add_style_class (GTK_WIDGET (button), "image-button");