History of api_url 2 changes

In src/cli/proposal.rs, lines 13–32 on 3da45015f6f4f32db6d3804b79f99ce1d8632e822e876a0bd856838c8d71221a. 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 13,32:src/cli/proposal.rs.