User guide issue : disappeared or deprecated field?

I tried to use cwl and followed the [Common Workflow Language User Guide](http://www.commonwl.org/user_guide/),but I had questions.

[In section 4(Returning Output Files)](http://www.commonwl.org/user_guide/04-output/index.html), `"example_out"` field is written as follows:
~~~
"example_out": {
"checksum": "sha1$da39a3ee5e6b4b0d3255bfef95601890afd80709",
"basename": "hello.txt",
"nameroot": "hello",
"nameext": ".txt",
"location": "file:///home/me/cwl/user_guide/hello.txt",
"path": "/home/me/cwl/user_guide/hello.txt",
"class": "File",
"size": 0
}
~~~

However, "nameroot" and "nameext" have disappeared in my results. Is this caused by version of my cwl?

Here is my cwl verison

~~~
$cwltool --version
~/.pyenv/versions/3.6.1/bin/cwltool 1.0.20190621234233
~~~

It seems that same problem is existing in Section 5 and Section 6.

Thanks.

Compare the examples in sections 4, 5, and 6 of the Common Workflow Language User Guide with the output produced by cwltool 1.0.20190621234233. Check whether nameroot and nameext were removed or deprecated, then update the affected examples or document the version difference so the guide matches current results.

Written by the indexing model from the issue text.