Added @since tags

bug 22286, from Phil Steitz
Changed from public to package scope


git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/lang/trunk@137588 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/commons/lang/StringPrintWriter.java

@@ -69,8 +69,10 @@ import java.io.StringWriter;
  *
  * @author Alex Chaffee
  * @author Scott Stanchfield
- **/
-public class StringPrintWriter extends PrintWriter {
+ * @since 2.0
+ */
+class StringPrintWriter extends PrintWriter {
+    
     public StringPrintWriter() {
         super(new StringWriter());
     }
@@ -90,5 +92,6 @@ public class StringPrintWriter extends PrintWriter {
         flush();
         return ((StringWriter) out).toString();
     }
+    
 }