format codes

src/main/java/org/springframework/samples/petclinic/util/CallMonitoringAspect.java

@@ -66,10 +66,11 @@ public class CallMonitoringAspect {
 
     @ManagedAttribute
     public long getCallTime() {
-    	if (this.callCount > 0) 
-    		return this.accumulatedCallTime / this.callCount;
-    	else
-    		return 0;
+    	if (this.callCount > 0) {
+            return this.accumulatedCallTime / this.callCount;
+        } else {
+            return 0;
+        }
     }