Fix jshint errors
Do not treat the following as an error:

  var length = (0
    + 2 // firstCode
    + 2 // entryCount
    + 2 * count // Size of glyphIndexArray
  );

This is not (as jshint suggests) an “unsafe line break” because as long as the
braces are not closed, no other valid interpretation of the code is possible.

When jshint is fixed, this option should be turned back off.