History of to_hex 1 change

In src/cli/approve.rs, lines 37–39 on 64dc5197f9dfe3311fc883ec24681ffb529300c8b6e22ca6a7e99892853c4b82. 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.