Fixing a bug in change printing

Dependencies

• [2] VO5OQW4W Removing anyhow in libpijul

Change contents

• edit in libpijul/src/change/text_changes.rs at line 1285
  [2.86184]

  [2.86184]
  + if !buf.ends_with(b"\n") {

  + writeln!(w)?;

  + }