Merge #377: Use the new recover_ecdsa in bench function

c7a8bbb Use the new recover_ecdsa in bench function (Tobin Harding)

Pull request description:

  We recently deprecated `recover` in favour of `recover_ecdsa` but missed
  one call site in benches.

ACKs for top commit:
  apoelstra:
    ACK c7a8bbb

Tree-SHA512: c57625ff50aea6c3985f7c7d52bf47ba6a48e93d3c60408edb6ab9ddc6e014171f8691dab954472b02ac745fcefa95c9206000560ef1ba64308b521b36563bfa

Author: apoelstra

src/ecdsa/recovery.rs

@@ -387,7 +387,7 @@ mod benches {
         let sig = s.sign_ecdsa_recoverable(&msg, &sk);
 
         bh.iter(|| {
-            let res = s.recover(&msg, &sig).unwrap();
+            let res = s.recover_ecdsa(&msg, &sig).unwrap();
             black_box(res);
         });
     }