Fix the bug that resource name displayed in ClusterNode-related command APIs for SphU.entry(method) is incorrect (#1078)

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

sentinel-core/src/main/java/com/alibaba/csp/sentinel/slotchain/MethodResourceWrapper.java

@@ -47,7 +47,7 @@ public class MethodResourceWrapper extends ResourceWrapper {
 
     @Override
     public String getShowName() {
-        return IdUtil.truncate(this.name);
+        return name;
     }
 
     @Override