History of api_url 2 changes

In src/cli/proposal.rs, lines 13–32 on 771661aa50f4de9919098ec2eb4c52b543093eebcb52dd7dc140e2daeb00b2c0. 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.