History of secured 1 change

In crates/hub/src/mail.rs, lines 275–287 on v0.9.19. 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 275,287:crates/hub/src/mail.rs.