Fix typo in BufType javadoc

buffer/src/main/java/io/netty/buffer/BufType.java

@@ -20,7 +20,7 @@ package io.netty.buffer;
  */
 public enum BufType {
     /**
-     * Operates one bytes.
+     * Operates on bytes.
      */
     BYTE,
 

transport/src/main/java/io/netty/channel/DefaultChannelHandlerContext.java

@@ -64,7 +64,7 @@ final class DefaultChannelHandlerContext extends DefaultAttributeMap implements
     // 'bridge' so that the two handlers access each other's buffer only via the bridges.
     // The content written into a bridge is flushed into the actual buffer by flushBridge().
     //
-    // Note we use an AtomicReferenceFieldUpdater for atomic operations on these to safe memory. This will safe us
+    // Note we use an AtomicReferenceFieldUpdater for atomic operations on these to save memory. This will save us
     // 64 bytes per Bridge.
     @SuppressWarnings("UnusedDeclaration")
     private volatile MessageBridge inMsgBridge;