History of project 3 changes

In crates/oh/src/main.rs, lines 1325–1439 on 5436f0dd942938b88d95fa7451994bfec9477a11cea9c9d15df6854bd9f5a828. 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 1325,1439:crates/oh/src/main.rs.