History of seg 1 change

In crates/oh/src/mcp.rs, lines 57–61 on v0.9.21. 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 57,61:crates/oh/src/mcp.rs.