History of proposal 5 changes

In crates/oh/src/main.rs, lines 602–720 on 4f37afcc35832326a0a8d3fa8fe8fbe2317fcb3cfe52ef9a3604aeaaa23dbeca. 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 602,720:crates/oh/src/main.rs.