format: re-expand imports

Author: cburroughs

Diff for: src/main/java/com/clearspring/analytics/stream/StreamSummary.java

@@ -22,7 +22,9 @@
 import java.io.ObjectInput;
 import java.io.ObjectInputStream;
 import java.io.ObjectOutput;
-import java.util.*;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
 
 import com.clearspring.analytics.util.DoublyLinkedList;
 import com.clearspring.analytics.util.ExternalizableUtil;