Add missing @SInCE tag

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/csv/trunk@1742174 13f79535-47bb-0310-9956-ffa450edef68

Author: britter

src/main/java/org/apache/commons/csv/CSVFormat.java

@@ -1191,6 +1191,7 @@ public CSVFormat withHeader(final String... header) {
      * @return A new CSVFormat that is equal to this but with the specified header
      * @see #withHeader(String...)
      * @see #withSkipHeaderRecord(boolean)
+     * @since 1.3
      */
     public CSVFormat withHeader(final Class<? extends Enum<?>> headerEnum) {
         String[] header = null;