History of api_url 2 changes

In src/cli/proposal.rs, lines 13–32 on 4cce912a095345370b211b5340679792badd3c7dc2d302e97385711cf6143907. 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.