History of finish 3 changes

In crates/oxy-strata/src/aws.rs, lines 191–220 on b689779e9e7428f68bef6dfc047bf9fcb4a6ba516fd5e9b34c9ea067c830d974. 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.