Rework wrap to have simpler usage pattern

[shadowspawn]

Pull Request

The wrap routine is now exposed and should make sense alone.

Problem

The wrap routine was a bit hard to understand in isolation or use for new calls. It does produce
a column of width characters excluding the indent, but the column looks misaligned in the result.

Conceptually:

      1234567890
term  d e s c r i p t i o n
123456


wrap('d e s c r i p t i o n', 10, 6):
d e s c r
     i p t i o n

put back together to form

term  d e s c r i
      p t i o n

Solution

Pass in the full text. The width is now the total line length to wrap at, so closely related to the terminal width. The resulting string looks wrapped.

12345678901234567890
term  d e s c r i p t i o n

wrap('term  d e s c r i p t i o n', 16, 6):
term  d e s c r
      i p t i o n

[abetomo]

👍