History of Mark::point 1 change

In crates/backdrop/src/mark.rs, lines 98–100 on v0.5.1. 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 98,100:crates/backdrop/src/mark.rs.