Javadoc

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/compress/trunk@1660161 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/main/java/org/apache/commons/compress/archivers/arj/ArjArchiveInputStream.java b/src/main/java/org/apache/commons/compress/archivers/arj/ArjArchiveInputStream.java
index 01e1570..09e26f6 100644
--- a/src/main/java/org/apache/commons/compress/archivers/arj/ArjArchiveInputStream.java
+++ b/src/main/java/org/apache/commons/compress/archivers/arj/ArjArchiveInputStream.java
@@ -52,7 +52,7 @@
      * Constructs the ArjInputStream, taking ownership of the inputStream that is passed in.
      * @param inputStream the underlying stream, whose ownership is taken
      * @param charsetName the charset used for file names and comments
-     *   in the archive
+     *   in the archive. May be {@code null} to use the platform default.
      * @throws ArchiveException
      */
     public ArjArchiveInputStream(final InputStream inputStream,