History of main 2 changes

In crates/oh/src/main.rs, lines 438–455 on 67040b158ae233ccec6fa90ca649cce9ebb3761ee64a23f5a1d9265c54b46bd3. 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 438,455:crates/oh/src/main.rs.