channelpadding: don't call method pointer directly.

src/core/or/channelpadding.c

@@ -265,7 +265,7 @@ channelpadding_update_padding_for_channel(channel_t *chan,
     log_fn_ratelim(&relay_limit,LOG_PROTOCOL_WARN,LD_PROTOCOL,
            "Got a PADDING_NEGOTIATE from relay at %s (%s). "
            "This should not happen.",
-           chan->get_remote_descr(chan, 0),
+           channel_get_canonical_remote_descr(chan),
            hex_str(chan->identity_digest, DIGEST_LEN));
     return -1;
   }
@@ -399,7 +399,7 @@ channelpadding_send_padding_cell_for_callback(channel_t *chan)
         "Sending netflow keepalive on %"PRIu64" to %s (%s) after "
         "%"PRId64" ms. Delta %"PRId64"ms",
         (chan->global_identifier),
-        safe_str_client(chan->get_remote_descr(chan, 0)),
+        safe_str_client(channel_get_canonical_remote_descr(chan)),
         safe_str_client(hex_str(chan->identity_digest, DIGEST_LEN)),
         (monotime_coarse_diff_msec(&chan->timestamp_xfer,&now)),
         (