[luatex] how many bytes for fontdimens?

[jfbu]

> Le 5 août 2021 à 10:01, jfbu <jfbu at free.fr> a écrit :
> 
> And re-setting it (to "$(pwd)") I reproduce again typically the above results...
> 


"$(pwd):"

error due to fighting with my Mail converting straight quotes into curly quotes
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