Don't use wildcards even for Asserts

Author: sebbASF

hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/util/TestPureJavaCrc32C.java

@@ -17,12 +17,13 @@
  */
 package org.apache.hadoop.util;
 
-import static org.junit.Assert.*;
-
 import java.util.zip.Checksum;
 
 import org.junit.Test;
 
+import static org.junit.Assert.assertEquals;
+
+
 public class TestPureJavaCrc32C {
 
   @Test