AW: [barcode] Bugfix for barcode-097 (pcl.c)

[Christoph Pross]

> You are right, as author of pcl.c, I confirm that code is derived from
> ps.c, and my lack of knowledge of Postscript let's doing me 
> this error.

It took me a while, to find the error, because I never dealt with
Postscrip-Code before. The generated Barcode looked (nearly) good
but my scanner remained quiet :-)
 
> Could you also report (to list) what printer model works for you ?

I only tried it with HP Laserjet 6P, but it should work with
every PCL-Printer.