History of Engine::now 1 change

In crates/backdrop/src/lib.rs, lines 48–50 on 0cd118748131b9e7e98a2c9b7b50df8ebcbda337097e6b2d61110408cc4d9b33. 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 48,50:crates/backdrop/src/lib.rs.