History of milestone 2 changes

In crates/oh/src/main.rs, lines 1920–1969 on 8bb7baeb4557754a8602cf6a0b0ef3e4335ff5a0703e417a53c2e61aaf825036. 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 1920,1969:crates/oh/src/main.rs.