History of to_hex 1 change

In src/cli/approve.rs, lines 37–39 on 9aec107d1071104cac89c32434f29b484a7389cb8b9bfd8f943bbda5116ca102. 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.