Updated release notes

Also Fixes #306

README.adoc

@@ -1,7 +1,7 @@
 = sshj - SSHv2 library for Java
 Jeroen van Erp
 :sshj_groupid: com.hierynomus
-:sshj_version: 0.21.0
+:sshj_version: 0.21.1
 :source-highlighter: pygments
 
 image:https://travis-ci.org/hierynomus/sshj.svg?branch=master[link="https://travis-ci.org/hierynomus/sshj"]
@@ -104,6 +104,8 @@ Google Group: http://groups.google.com/group/sshj-users
 Fork away!
 
 == Release history
+SSHJ 0.21.1 (2017-04-25)::
+* Merged https://github.com/hierynomus/sshj/pulls/322[#322]: Fix regression from 40f956b (invalid length parameter on outputstream)
 SSHJ 0.21.0 (2017-04-14)::
 * Merged https://github.com/hierynomus/sshj/pulls/319[#319]: Added support for `ssh-rsa-cert-v01@openssh.com` and `ssh-dsa-cert-v01@openssh.com` certificate key files
 * Upgraded Gradle to 3.4.1

src/main/java/net/schmizz/sshj/connection/channel/ChannelOutputStream.java

@@ -138,7 +138,7 @@ public final class ChannelOutputStream extends OutputStream implements ErrorNoti
         int length = len;
         int offset = off;
         while (length > 0) {
-            final int n = buffer.write(data, offset, len);
+            final int n = buffer.write(data, offset, length);
             offset += n;
             length -= n;
         }