Added linefeed to end of KeyTreeString.

Dependencies

• [2] K5VHGRGG Add serialization.
• [3] KD6IJRPT Improved header documentation.
• [*] 6ZJX2OQV First commit

Change contents

• edit in src/serialize.rs at line 188
  [2.4529]→[2.4529:4546](∅→∅)
  − s.pop();
• edit in src/lib.rs at line 405
  [5.22917]

  [5.22917]
  + /// Useful for debugging.

  + pub fn current_line(&self) -> usize {

  + self.0.tokens[self.1].line()

  + }

  +