History of proposal 6 changes

In crates/oh/src/main.rs, lines 902–1039 on 0e04dfc20211a964fc6d4a9f87831c208d704ebfbf2cc1b7097f2c87651ebcd9. 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 902,1039:crates/oh/src/main.rs.