History of open 4 changes

In crates/oxy-strata/src/gcp.rs, lines 32–71 on 31d3e932e97afc49f2dd5451cf97fcfb49b6fa991195aa3c0eabbfaf84c55103. 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 32,71:crates/oxy-strata/src/gcp.rs.