History of api_url 2 changes

In src/cli/proposal.rs, lines 13–32 on ff6987682725f3184da6505b62cbb51158c4508ebb5100600b668c6ef4d9e9ca. 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.