History of unlink 1 change

In crates/hub/src/signin.rs, lines 271–278 on 59338826539ca185be617d96deaa09a2b24a32c37bc11d57c3ecf5a32679f606. 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 271,278:crates/hub/src/signin.rs.