History of finish 3 changes

In crates/oxy-strata/src/aws.rs, lines 191–220 on 2aa1854b0d1311b330db24ec73e364035eb41f5eb80c32e2edd701aa316341a3. 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 191,220:crates/oxy-strata/src/aws.rs.