pub fn fill(lines: &[&str], prefix: &Prefix, textwidth: usize) -> Vec<String>Expand description
Reflow one already-identified paragraph into output lines.
Greedy fill: words are appended while the result still fits. A word
that cannot fit on a line of its own overflows rather than being
split — vim, Emacs fill-paragraph and Rewrap all agree, and it is
what keeps a long URL in a comment intact.