Depreacte CharSequenceUtils 0-argument contructor

src/main/java/org/apache/commons/lang3/CharSequenceUtils.java

@@ -383,7 +383,11 @@ public class CharSequenceUtils {
      *
      * <p>This constructor is public to permit tools that require a JavaBean
      * instance to operate.</p>
+     *
+     * @deprecated TODO Make private in 4.0.
      */
+    @Deprecated
     public CharSequenceUtils() {
+        // empty
     }
 }