[epiphany] nautilus-floating-bar: Fix deprecation warning

[Michael Catanzaro <mcatanzaro src gnome org>]

commit ba0710fff00137e5cf3905948c9778f43a2ff55a
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Sat Oct 8 15:31:16 2016 -0500

    nautilus-floating-bar: Fix deprecation warning

 lib/widgets/nautilus-floating-bar.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/lib/widgets/nautilus-floating-bar.c b/lib/widgets/nautilus-floating-bar.c
index 5267323..acdf014 100644
--- a/lib/widgets/nautilus-floating-bar.c
+++ b/lib/widgets/nautilus-floating-bar.c
@@ -314,7 +314,7 @@ nautilus_floating_bar_constructed (GObject *obj)
   self->priv->spinner = w;
 
   gtk_widget_set_size_request (w, 16, 16);
-  gtk_widget_set_margin_left (w, 8);
+  gtk_widget_set_margin_start (w, 8);
 
   labels_box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
   gtk_box_pack_start (GTK_BOX (box), labels_box, TRUE, TRUE, 0);