History of Engine::now 1 change

In crates/backdrop/src/lib.rs, lines 48–50 on 1870e4fa98086468364a61d2fa556f7fe5913bccd31404c75d8836cb12097d6c. 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.