Clamz is not able to pull album_artist or album out of the azw file for saving (but it shows it in the "-i" command

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Run clamz as: clamz -d /home/myname/Music/${album_artist}/${album} 
/home/myname/.clamz/amzfiles/AmazonMP3-somefile.amz

What is the expected output? 

I expect it to save the files to (for example, if it's Jack Johnson's album 
"Brushfire"): /home/myname/Music/Jack Johnson/Brushfire

What do you see instead?

Instead it says it's saving it to: /home/myname///themp3filename.mp3

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

Clamz 0.5 on OpenSUSE 12.1

Please provide any additional information below.

When I run "clamz -i theAZWFile.azw" it shows the artist and artist album 
correctly for each file but it's not grabbing that as a variable when saving it.

Original issue reported on code.google.com by donrhum...@gmail.com on 8 May 2012 at 5:02

[GoogleCodeExporter]

It appears this occurs because the Terminal is interpreting those variables 
first. So they should be surrounded by single quote marks. (This needs to be 
explained somewhere in the "clamz --help")

Original comment by donrhum...@gmail.com on 8 May 2012 at 5:16