Fixes and improvements from review feedback.
@@ -370,7 +370,8 @@ impl<'a> Run<'a> {
/// Removes all modules from the directory that are not in `retain`.
///
- /// Returns whether the host should be kept or can be deleted, too.
+ /// Returns whether the host directory should be kept or can be deleted,
+ /// too.
fn cleanup_host(
&self, entry: &fatal::DirEntry, retain: &HashSet<String>
) -> Result<bool, Failed> {
