chore: fix warnings (#3989)

core/stores/cache/cacheopt.go

@@ -8,7 +8,7 @@ const (
 )
 
 type (
-	// An Options is used to store the cache options.
+	// Options is used to store the cache options.
 	Options struct {
 		Expiry         time.Duration
 		NotFoundExpiry time.Duration

core/stores/redis/conf.go

@@ -47,7 +47,7 @@ func (rc RedisConf) NewRedis() *Redis {
 		opts = append(opts, WithTLS())
 	}
 
-	return New(rc.Host, opts...)
+	return newRedis(rc.Host, opts...)
 }
 
 // Validate validates the RedisConf.

core/stores/redis/redislock.go

@@ -2,6 +2,7 @@ package redis
 
 import (
 	"context"
+	"errors"
 	"math/rand"
 	"strconv"
 	"sync/atomic"
@@ -64,7 +65,7 @@ func (rl *RedisLock) AcquireCtx(ctx context.Context) (bool, error) {
 	resp, err := rl.store.ScriptRunCtx(ctx, lockScript, []string{rl.key}, []string{
 		rl.id, strconv.Itoa(int(seconds)*millisPerSecond + tolerance),
 	})
-	if err == red.Nil {
+	if errors.Is(err, red.Nil) {
 		return false, nil
 	} else if err != nil {
 		logx.Errorf("Error on acquiring lock for %s, %s", rl.key, err.Error())