[pstricks] pstricks-add stops lyx

[Bernd Sellentin]

Hello,

I updated to pstricks-add fileversion 2.71, now lyx 1.3.4 complains and stops 
latexing:

Package xkeyval Error: `hatchwidthinc' undefined in families `,pstricks-add'.
 \resetOptions
Package xkeyval Error: `hatchsepinc' undefined in families `,pstricks-add'.
 \resetOptions

I commented out in pstricks-add.tex line 2550:
hatchsepinc=0pt,hatchwidthinc=0pt,%
This solved the problem, but is probably not the desired way. Herbert, can you 
have a look at this?

Thanks
Bernd