History of collect 2 changes

In crates/hub/src/tlog.rs, lines 491–563 on c30444e35f2e8a7a173e9b7a00a8f5c920f4b86525720df4eac038dfb9e20738. 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 491,563:crates/hub/src/tlog.rs.