Fix traceback for non-string values in lxc config files

Resolves #19055.
split win_autoruns command
split win_firewall commands
split win_groupadd commands
split win_ip commands
add missing string variable in win_ip mod
split win_network commands
split win_ntp commands
split win_pkg commands
split win_service commands
split win_shadow commands
split win_system commands
split win_timezone commands
split win_useradd commands
chcp is a cmd builtin