History of project 3 changes

In crates/oh/src/main.rs, lines 1350–1464 on 3b1bc27fe805521f486e8fc71d528404f354ed1c899c2fb2fef039ac7b0896cf. 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 1350,1464:crates/oh/src/main.rs.