ETree: Fix runtime warnings with GTK3.

ETable has a "vertical-spacing" style property, ETree does not.
ECellText expects it to be in both.

1 files changed, 11 insertions, 0 deletions

diff --git a/widgets/table/e-tree.c b/widgets/table/e-tree.c
index 5f0effaac8..8d718b0235 100644
--- a/widgets/table/e-tree.c
+++ b/widgets/table/e-tree.c
@@ -3584,6 +3584,17 @@ e_tree_class_init (ETreeClass *class)
 					     10,
 					     G_PARAM_READABLE));
 
+	gtk_widget_class_install_style_property (
+		widget_class,
+		g_param_spec_int (
+			"vertical-spacing",
+			"Vertical Row Spacing",
+			"Vertical space between rows. "
+			"It is added to top and to bottom of a row",
+			0, G_MAXINT, 3,
+			G_PARAM_READABLE |
+			G_PARAM_STATIC_STRINGS));
+
 	gal_a11y_e_tree_init ();
 }