openpgp: Return iterator over bad signatures.

  - This allows us to store verification errors with the signatures.

  - See #619.

1 files changed, 1 insertions, 1 deletions

diff --git a/openpgp/src/packet_pile.rs b/openpgp/src/packet_pile.rs
index 02758608..259716d6 100644
--- a/openpgp/src/packet_pile.rs
+++ b/openpgp/src/packet_pile.rs
@@ -98,7 +98,7 @@ use crate::parse::Cookie;
 /// let cert = Cert::try_from(pp)?;
 /// if let NotAsFarAsWeKnow = cert.revocation_status(policy, None) {
 ///     // revocation signature is broken and the key is not definitely revoked
-///     assert_eq!(cert.bad_signatures().len(), 1);
+///     assert_eq!(cert.bad_signatures().count(), 1);
 /// }
 /// # else {
 /// #   unreachable!();