History of log 2 changes

In crates/hub/src/flow.rs, lines 391–416 on ae138eea7a71055eed1bdb63b016828e6bbe2de7ff2b8b06a741ebeaa759e950. 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 391,416:crates/hub/src/flow.rs.