Long ASCII lines are truncated to 40960 chars

[nponeccop]

While such long lines are uncommon in usual text files, node-dirty plaintext database files can contain very long lines. I found a performance bug in native node-dirty file reader (it was too slow on long lines but worked). When I tried to reimplement node-dirty file reader using Lazy.lines feature, I found that the first line length was 40960 chars instead of 43000+ it was supposed to be.

Can you fix .lines so very long lines are not truncated?