* feat: use static ip without manually typing it
* fix(cidr_to_netmask): rewrite to support sh
* refactor: remove cidr_to_netmask(), set cidr directly
https://lists.debian.org/debian-boot/2012/09/msg00239.html
* refactor: rename option --static-ip to --static-ipv4
* Add --static-ipv4 doc
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Co-authored-by: Anonymous <>
Co-authored-by: Brent, Yang Bohan <youthdna@live.com>
