Merge pull request #1622 from ChixianGen/spring-cloud-alibaba-cxg

'修复字段masterId判断bug'

spring-cloud-alibaba-starters/spring-cloud-alibaba-sentinel-datasource/src/main/java/com/alibaba/cloud/sentinel/datasource/config/RedisDataSourceProperties.java

@@ -93,7 +93,7 @@ public class RedisDataSourceProperties extends AbstractDataSourceProperties {
 					"RedisDataSource  channel can not be empty");
 		}
 
-		if (!StringUtils.isEmpty(masterId) && StringUtils.isEmpty(masterId)) {
+		if (StringUtils.isEmpty(masterId)) {
 			throw new IllegalArgumentException(
 					"RedisDataSource  sentinel model，masterId can not be empty");
 		}