Bump golangci-lint to v1.21.0

.golangci.yml

@@ -5,7 +5,11 @@ run:
 linters:
   enable-all: true
   disable:
+    - funlen
     - gochecknoglobals
+    - gocognit
     - goconst
+    - godox
     - gosec
     - maligned
+    - wsl

.travis.yml

@@ -20,4 +20,4 @@ env:
 go_import_path: github.com/go-redis/redis
 
 before_install:
-  - curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s -- -b $(go env GOPATH)/bin v1.17.1
+  - curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s -- -b $(go env GOPATH)/bin v1.21.0

command.go

@@ -1863,7 +1863,6 @@ func (cmd *GeoPosCmd) readReply(rd *proto.Reader) error {
 		return nil, nil
 	})
 	return cmd.err
-
 }
 
 //------------------------------------------------------------------------------