logilab-common #72450 clcommands: --rc-file option doesn't work [validation pending]

clcommands adds a --rc-file option to be specified before the command, but then proceeds to try and run a "--rc-file" command instead of moving on to the next argument to get it.

appeared in<not specified>
done in0.56.1
load left0.000
closed by#b0e29b5dc97c clcommands: fix the --rc-file option (closes #72450)