History of to_hex 1 change

In src/cli/approve.rs, lines 37–39 on 2aa1854b0d1311b330db24ec73e364035eb41f5eb80c32e2edd701aa316341a3. 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.