subtract with overflow in new line iterator

[bjorn-ove]

It appears there is an issue that was introduced by #70.

The issue is an subtract with overflow in

ropey/src/iter.rs

Line 1240 in 1029afa

self.total_lines - self.line_idx,

The following code reproduces the issue.

use ropey::Rope;

fn main() {
    dbg!(Rope::from_str("").lines_at(0).collect::<Vec<_>>());
}

[cessen]

Thanks so much for catching and reporting this! A fix is on its way.

[cessen]

I'll make a release with the fix later today.

[bjorn-ove]

Thank you for very quick response. This was above and beyond expectations 👍

[cessen]

No problem! Also, just published v1.6.0 with the bug fix.