History of tests::sky 2 changes

In crates/backdrop/src/sky.rs, lines 587–596 on 8501fd5815b9e83cd465032461acf282f4538f115450cef2e0272e12284fd83b. 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 587,596:crates/backdrop/src/sky.rs.