Fix incorrect format placeholders

Author: petere

src/backend/libpq/auth-sasl.c

@@ -181,7 +181,7 @@ CheckSASLAuth(const pg_be_sasl_mech *mech, Port *port, char *shadow_pass,
 			/*
 			 * Negotiation generated data to be sent to the client.
 			 */
-			elog(DEBUG4, "sending SASL challenge of length %u", outputlen);
+			elog(DEBUG4, "sending SASL challenge of length %d", outputlen);
 
 			if (result == PG_SASL_EXCHANGE_SUCCESS)
 				sendAuthRequest(port, AUTH_REQ_SASL_FIN, output, outputlen);

src/backend/libpq/auth-scram.c

@@ -1208,7 +1208,7 @@ build_server_first_message(scram_state *state)
 	state->server_nonce[encoded_len] = '\0';
 
 	state->server_first_message =
-		psprintf("r=%s%s,s=%s,i=%u",
+		psprintf("r=%s%s,s=%s,i=%d",
 				 state->client_nonce, state->server_nonce,
 				 state->salt, state->iterations);
 

src/backend/libpq/auth.c

@@ -1002,8 +1002,8 @@ pg_GSS_recvauth(Port *port)
 		/* gbuf no longer used */
 		pfree(buf.data);
 
-		elog(DEBUG5, "gss_accept_sec_context major: %d, "
-			 "minor: %d, outlen: %u, outflags: %x",
+		elog(DEBUG5, "gss_accept_sec_context major: %u, "
+			 "minor: %u, outlen: %u, outflags: %x",
 			 maj_stat, min_stat,
 			 (unsigned int) port->gss->outbuf.length, gflags);