History of api_url 2 changes

In src/cli/proposal.rs, lines 13–32 on bbe654f95806a1c7a59671d7bef45801e5b12398161b48ea42733a257d74b4f7. 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.