/* The cursor to use for vertical scroll bars on x_current_display. */
static Cursor x_vertical_scroll_bar_cursor;
-/* Frame being updated by update_frame. This is declared in term.c. */
+/* Frame being updated by update_frame. This is declared in term.c.
This is set by update_begin and looked at by all the
XT functions. It is zero while not inside an update.
In that case, the XT functions assume that `selected_frame'