Actually I don't know what's the version of my Xnest here - there's neither a -version argument nor does the manpage say anything about it beside that it belongs to xorg-server 1.5.3.
The output of -help lists two 'different' usages for the -class argument and -cc does something similar.
-class string default visual class
-class display-class specify display class to send in manage
I expected to set the window class with -class like -name for the window name.
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