archlinux: add package 'inetutils' to boilerplate

Even it is a core component, some hoster do not have pre installed the
'inetutils' package.  We do need this package for the 'hostname' command.

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>

utils/lxc.sh

@@ -43,7 +43,7 @@ echo 'Set disable_coredump false' >> /etc/sudo.conf
 # shellcheck disable=SC2034
 archlinux_boilerplate="
 pacman -Syu --noconfirm
-pacman -S --noconfirm git curl wget sudo
+pacman -S --noconfirm inetutils git curl wget sudo
 echo 'Set disable_coredump false' >> /etc/sudo.conf
 "