[gnumeric] GUI: Fix context menu for toolbars.

[Morten Welinder <mortenw src gnome org>]

commit 563866ff03cec9507d353c55aa2fb0b52f83f2f2
Author: Morten Welinder <terra gnome org>
Date:   Fri May 4 13:25:52 2018 -0400

    GUI: Fix context menu for toolbars.

 ChangeLog     |    5 +++++
 src/wbc-gtk.c |    9 ++++-----
 2 files changed, 9 insertions(+), 5 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index 9eeca48..4874b02 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2018-05-04  Morten Welinder  <terra gnome org>
+
+       * src/wbc-gtk.c (toolbar_context_menu): Use a proper separator
+       menu item.
+
 2018-05-03  Morten Welinder  <terra gnome org>
 
        * src/commands.c (get_new_objects): Change from transfer-container
diff --git a/src/wbc-gtk.c b/src/wbc-gtk.c
index c16b681..c983e2f 100644
--- a/src/wbc-gtk.c
+++ b/src/wbc-gtk.c
@@ -3588,9 +3588,9 @@ toolbar_context_menu (GtkToolbar *tb, WBCGtk *gtk, GdkEvent *event)
                char const *text;
                GtkPositionType pos;
        } const pos_items[] = {
-               { N_("Display above sheets"), GTK_POS_TOP },
-               { N_("Display to the left of sheets"), GTK_POS_LEFT },
-               { N_("Display to the right of sheets"), GTK_POS_RIGHT }
+               { N_("Display toolbar above sheets"), GTK_POS_TOP },
+               { N_("Display toolbar to the left of sheets"), GTK_POS_LEFT },
+               { N_("Display toolbar to the right of sheets"), GTK_POS_RIGHT }
        };
 
        if (gnm_debug_flag ("toolbar-size"))
@@ -3615,9 +3615,8 @@ toolbar_context_menu (GtkToolbar *tb, WBCGtk *gtk, GdkEvent *event)
                                  gtk);
        }
 
-       item = gtk_menu_item_new ();
+       item = gtk_separator_menu_item_new ();
        gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
-       gtk_widget_set_sensitive (item, FALSE);
 
        item = gtk_menu_item_new_with_label (_("Hide"));
        gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);