LANG-1402: more comment proofreading

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

@@ -8678,7 +8678,7 @@ public static void shuffle(final double[] array, final Random random) {
      * @param <T> the component type of the array, may be null
      * @param array   the array holding the desired element
      * @param index  the index of the element in the array
-     * @return The element in the array at the index, or null if it is ill-formatted
+     * @return The element in the array at the index, or null if the array is not sufficiently long for the index. May return null if the array contains null
      * @since 3.8
      */
     public static <T> T get(T[] array, int index){