Fix more lint warnings

Signed-off-by: Jakub Sztandera <kubuxu@protocol.ai>

node/impl/client/client.go

@@ -435,7 +435,6 @@ func (a *API) ClientGenCar(ctx context.Context, ref api.FileRef, outputPath stri
 		ssb.ExploreAll(ssb.ExploreRecursiveEdge())).Node()
 
 	f, err := os.Create(outputPath)
-	defer f.Close() //nolint:errcheck
 	if err != nil {
 		return err
 	}
@@ -445,7 +444,7 @@ func (a *API) ClientGenCar(ctx context.Context, ref api.FileRef, outputPath stri
 		return err
 	}
 
-	return nil
+	return f.Close()
 }
 
 func (a *API) clientImport(ref api.FileRef, bufferedDS *ipld.BufferedDAG) (cid.Cid, error) {

node/modules/lp2p/addrs.go

@@ -18,7 +18,7 @@ func AddrFilters(filters []string) func() (opts Libp2pOpts, err error) {
 			if err != nil {
 				return opts, fmt.Errorf("incorrectly formatted address filter in config: %s", s)
 			}
-			opts.Opts = append(opts.Opts, libp2p.FilterAddresses(f)) //golint:staticcheck
+			opts.Opts = append(opts.Opts, libp2p.FilterAddresses(f)) //nolint:staticcheck
 		}
 		return opts, nil
 	}