History of project 3 changes

In crates/oh/src/main.rs, lines 1325–1439 on d74ce22fa80e989c9d335c5a4ace5bc3f2548b941325212210e240c3968eb537. 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.