pub const MAX_LINE: u64 = _; // 16_777_216u64Expand description
The most a peer may put on one line before this side stops reading it.
A line is read into memory before anything can be said about it, so a peer that never writes a newline is a peer that decides how much memory this process uses. Sixteen mebibytes is far above any real page — a source declaring a page size of ten thousand and a kibibyte of prose per task is a tenth of it — and far below anything that threatens a host, which is the whole of what a bound like this is for.