displayed as absolute. The default is nil, which doesn't display the
line numbers.
+Line numbers are not displayed at all in minibuffer windows and in
+tooltips, as they are not useful there.
+
The new face 'line-number' is used to display the line numbers. The
new face 'line-number-current-line' can be customized to display the
current line's number differently from all the other line numbers; by