History of api_url 2 changes

In src/cli/proposal.rs, lines 13–32 on cf1b0412f142a8e78b3fcb1213bdd656e5e677a1ba12324402ceef51e5095cd7. 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.