History of start 1 change

In crates/flow/src/egress.rs, lines 254–256 on v0.4.0. Every change that wrote or deleted one of these lines, or deleted a line from between them. Exact, because each line keeps its identity across edits; edits elsewhere in the file are not here. Also: oxy log -L 254,256:crates/flow/src/egress.rs.