> \fill-line references the line-width property. By default it is set
> to #f which indicates the entire line.
>
> %%%%
> \version "2.18"
> \markup \fill-line { left center right }
> \markup \override #'(line-width . 100)
> \fill-line { left center right }
> \markup \override #'(line-width . 80)
> \fill-line { left center right }
> %%%%
Could you provide a patch for the notation reference so that something
similar to this is shown as an example for the documentation of
`\fill-line`?
Werner
