History of announce 2 changes

In crates/hub/src/swarm.rs, lines 105–134 on 3eb491e9489b1e0c652afca88a01ac6c9c959e478d663a28c69c447d8cacd1f7. 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 105,134:crates/hub/src/swarm.rs.