add Sentinel password to UniversalOptions

Signed-off-by: Dmitry Shmulevich <dmitry.shmulevich@sysdig.com>

universal.go

@@ -25,6 +25,7 @@ type UniversalOptions struct {
 
 	Username         string
 	Password         string
+	SentinelPassword string
 
 	MaxRetries      int
 	MinRetryBackoff time.Duration
@@ -108,6 +109,7 @@ func (o *UniversalOptions) Failover() *FailoverOptions {
 		DB:               o.DB,
 		Username:         o.Username,
 		Password:         o.Password,
+		SentinelPassword: o.SentinelPassword,
 
 		MaxRetries:      o.MaxRetries,
 		MinRetryBackoff: o.MinRetryBackoff,