text: fix infinite loop in Wrap

If the last word is greater than the limit, we wouldn't
set the next line break at all, and it would be left at
0, causing an infinite loop in the final loop to apply
the line breaks.

To fix this, recognize that the last word must be on the
last line, so its length doesn't matter. Always set the
last word's next break to the end of the text.

Fixes #1.
Closes #2.
2 files changed