dht bootstrap err check fix + logging

dht.go

@@ -372,13 +372,14 @@ func (dht *IpfsDHT) Bootstrap(ctx context.Context) {
 			id := make([]byte, 16)
 			rand.Read(id)
 			pi, err := dht.FindPeer(ctx, peer.ID(id))
-			if err != nil {
-				// NOTE: this is not an error. this is expected!
+			if err == routing.ErrNotFound {
+				// this isn't an error. this is precisely what we expect.
+			} else if err != nil {
 				log.Errorf("Bootstrap peer error: %s", err)
+			} else {
+				// woah, we got a peer under a random id? it _cannot_ be valid.
+				log.Errorf("dht seemingly found a peer at a random bootstrap id (%s)...", pi)
 			}
-
-			// woah, we got a peer under a random id? it _cannot_ be valid.
-			log.Errorf("dht seemingly found a peer at a random bootstrap id (%s)...", pi)
 		}()
 	}
 	wg.Wait()

handlers.go

@@ -148,7 +148,7 @@ func (dht *IpfsDHT) handleFindPeer(ctx context.Context, p peer.ID, pmes *pb.Mess
 	}
 
 	if closest == nil {
-		log.Errorf("handleFindPeer: could not find anything.")
+		log.Debugf("handleFindPeer: could not find anything.")
 		return resp, nil
 	}