History of api_url 2 changes

In src/cli/proposal.rs, lines 13–32 on d3b270909c7868793963ef2e081f34998da051fda4f9b3abe1ffe30fdffe5e20. 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.