History of finish 3 changes

In crates/oxy-strata/src/aws.rs, lines 191–220 on bf0247ee3590fb9049d7f49b8c382753df9151d16636667a9f3a15cf7f9fff0f. 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.