Fix Javadoc syntax

Javadoc does not seem to allow generic types, so use html entities to simulate the result
Neat hack from http://stackoverflow.com/questions/9482309/javadoc-bug-link-cant-handle-generics#comment-22244407

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/collections/trunk@1476780 13f79535-47bb-0310-9956-ffa450edef68

src/main/java/org/apache/commons/collections4/EnumerationUtils.java

@@ -55,7 +55,7 @@ public class EnumerationUtils {
      * Override toList(Enumeration) for StringTokenizer as it implements Enumeration<Object>
      * for the sake of backward compatibility.
      *
-     * @param stringTokenizer  the tokenizer to convert to a {@link #List(String)}
+     * @param stringTokenizer  the tokenizer to convert to a {@link List}<{@link String}>
      * @return a list containing all tokens of the given StringTokenizer
      */
     public static List<String> toList(final StringTokenizer stringTokenizer) {