how to append namespace prefix to attribute?

What steps will reproduce the problem?
1.
2.
3.

What is the expected output?
soap header request should be like:
<soap:Header>
<common:canonicalHeader common:version="1.1">

while it generates ...

What do you see instead?
<common:canonicalHeader version="1.1">

What version of the product are you using? On what operating system?
latest

Please provide any additional information below.

Original issue reported on code.google.com by Aarti.go...@gmail.com on 15 Jan 2014 at 1:31

shiroming / wsdl2objc

how to append namespace prefix to attribute? #207