fix lint violations

Author: fsouza

.golangci.yaml

@@ -0,0 +1,18 @@
+run:
+  deadline: 5m
+
+linters:
+  enable-all: true
+  disable:
+    - dupl
+    - errcheck
+    - funlen
+    - gochecknoglobals
+    - gochecknoinits
+    - gocognit
+    - goconst
+    - gocritic
+    - gocyclo
+    - lll
+    - unparam
+    - wsl

db/redis/storage/redis_test.go

@@ -467,6 +467,7 @@ func startSentinels(ports []string) (func(), error) {
 		fmt.Fprintf(f, string(configTemplate), port)
 		f.Close()
 		tempFiles[i] = f.Name()
+		//nolint:gosec
 		cmd := exec.Command("redis-server", f.Name(), "--sentinel")
 		cmd.Dir = os.TempDir()
 		err = cmd.Start()