Check write byte buffer size

Fixes #1309

(cherry picked from commit 73f0ab8)

src/main/java/com/rabbitmq/client/impl/nio/NioParams.java

@@ -180,7 +180,7 @@ public int getWriteByteBufferSize() {
      * @return this {@link NioParams} instance
      */
     public NioParams setWriteByteBufferSize(int writeByteBufferSize) {
-        if (readByteBufferSize <= 0) {
+        if (writeByteBufferSize <= 0) {
             throw new IllegalArgumentException("Buffer size must be greater than 0");
         }
         this.writeByteBufferSize = writeByteBufferSize;