(doc) Fix minor typo from example
It's farily easy to copy-paste the code without noticing that the
wrong extension is used
@@ -782,7 +782,7 @@ bzIn.close();
get closed properly):</p>
<source><![CDATA[
InputStream in = Files.newInputStream(Paths.get("archive.tar"));
-OutputStream fout = Files.newOutputStream(Paths.get("archive.tar.gz"));
+OutputStream fout = Files.newOutputStream(Paths.get("archive.tar.bz2"));
BufferedOutputStream out = new BufferedOutputStream(fout);
BZip2CompressorOutputStream bzOut = new BZip2CompressorOutputStream(out);
final byte[] buffer = new byte[buffersize];
