fix invalid json being generated with wrap_line_length

[jseward]

was creating json that split the line between "-" and the numeric value.

ex.

{
  "1234567891234567891234567891234": -
  4
}

Description

• [x] Source branch in your fork has meaningful name (not main)

Fixes Issue:

Before Merge Checklist

These items can be completed after PR is created.

(Check any items that are not applicable (NA) for this PR)

• [x] JavaScript implementation
• [x] Python implementation (NA if HTML beautifier)
• [x] Added Tests to data file(s)
• [x] Added command-line option(s) (NA if
• [x] README.md documents new feature/option(s)

[jseward]

fixes https://github.com/beautify-web/js-beautify/issues/1932

[bitwiseman]

@jseward Please add a test similar to this:

https://github.com/beautify-web/js-beautify/blob/9e8db5879af66178d05fc70ba7725fbd1b22aaea/test/data/javascript/tests.js#L218-L230

This will let you set options and test input vs outputs easily and will ensure the test works on both implementations of the beautifier.

You also need to test for "+4", right?

[bitwiseman]

@jseward When do you think you'll get around to working on this?