History of to_hex 1 change

In src/cli/approve.rs, lines 37–39 on fa53a2849de8c3e11ee3504c97eaae90de7bb38578d4c6ce04ce27572edab824. 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 37,39:src/cli/approve.rs.