typo and pointer comparison fixed

src/util/crypto_helper_rsa.c

@@ -240,7 +240,7 @@ handle_mt_avail (struct TALER_CRYPTO_RsaDenominationHelper *dh,
              &denom_pub,
              &kan->secm_pub,
              &kan->secm_sig,
-             (&kan->age_restricted > 0));
+             (kan->age_restricted > 0));
     TALER_denom_pub_free (&denom_pub);
   }
   return GNUNET_OK;

src/util/taler-exchange-secmod-rsa.c

@@ -20,7 +20,7 @@
  *
  * Key design points:
  * - EVERY thread of the exchange will have its own pair of connections to the
- *   crypto helpers.  This way, every threat will also have its own /keys state
+ *   crypto helpers.  This way, every thread will also have its own /keys state
  *   and avoid the need to synchronize on those.
  * - auditor signatures and master signatures are to be kept in the exchange DB,
  *   and merged with the public keys of the helper by the exchange HTTPD!