Bug#501390: Does not accept multiple --debbuildopts options

[Drew Parsons]

> If I were to rewrite it now, I'd like to implement it using shell
> arrays to maintain a DEBBUILDOPTS like interface.  How about that?
> 

Shell arrays sound find, please try it!

It's a problem because of a separate bug in dpkg-buildpackage,
that it's rejecting entries in the Uploaders: field in debian/control. 
I'm trying to work around that problem in pdebuild by giving a -k
option to --debbuildopts, but then I'm running against the problem in
this bug report!

Drew