/// evaluation: `if false { ... }`.
///
/// Those statements are bypassed by redirecting paths in the CFG around the
-/// `dead blocks`; but with `-Z instrument-coverage`, the dead blocks usually
+/// `dead blocks`; but with `-C instrument-coverage`, the dead blocks usually
/// include `Coverage` statements representing the Rust source code regions to
/// be counted at runtime. Without these `Coverage` statements, the regions are
/// lost, and the Rust source code will show no coverage information.