lxc: fix template scripts

[BarryLhm]

there's incompatible tools and patterns in template scripts like system sed + gnu sed syntax and system getopt + ugetopt syntax...

[q66]

that's not a specific issue

[q66]

either post patches or at least some actual specific information

[BarryLhm]

$> lxc-create -n test -t download -- --server mirrors.tuna.tsinghua.edu.cn/lxc-images
getopt: unrecognized option: l

and sed reports unexpected EOF while waiting '}'

[BarryLhm]

a patch:
/usr/share/lxc/templates/lxc-download

< if ! options=$(getopt -o d:r:a:hl -l dist:,release:,arch:,help,list,variant:,\
---
> if ! options=$(ugetopt -o d:r:a:hl -l dist:,release:,arch:,help,list,variant:,\
416c416
< sed -i -e "/lxc.net.0/{w ${LXC_PATH}/config-network" -e "d}" "${LXC_PATH}/config"
---
> gsed -i -e "/lxc.net.0/{w ${LXC_PATH}/config-network" -e "d}" "${LXC_PATH}/config"
419c419
< sed -i -e "/lxc./{w ${LXC_PATH}/config-auto" -e "d}" "${LXC_PATH}/config"
---
> gsed -i -e "/lxc./{w ${LXC_PATH}/config-auto" -e "d}" "${LXC_PATH}/config"
474,478c474,478
<   sed -i "s#LXC_NAME#${LXC_NAME}#g" "${file}"
<   sed -i "s#LXC_PATH#${LXC_PATH}#g" "${file}"
<   sed -i "s#LXC_ROOTFS#${LXC_ROOTFS}#g" "${file}"
<   sed -i "s#LXC_TEMPLATE_CONFIG#${LXC_TEMPLATE_CONFIG}#g" "${file}"
<   sed -i "s#LXC_HOOK_DIR#${LXC_HOOK_DIR}#g" "${file}"
---
>   gsed -i "s#LXC_NAME#${LXC_NAME}#g" "${file}"
>   gsed -i "s#LXC_PATH#${LXC_PATH}#g" "${file}"
>   gsed -i "s#LXC_ROOTFS#${LXC_ROOTFS}#g" "${file}"
>   gsed -i "s#LXC_TEMPLATE_CONFIG#${LXC_TEMPLATE_CONFIG}#g" "${file}"
>   gsed -i "s#LXC_HOOK_DIR#${LXC_HOOK_DIR}#g" "${file}"
484c484
<   sed -i 's|mingetty|mingetty --nohangup|' "${LXC_ROOTFS}/etc/init/tty.conf"
---
>   gsed -i 's|mingetty|mingetty --nohangup|' "${LXC_ROOTFS}/etc/init/tty.conf"```

[BarryLhm]

replacing sed and getopt solves the problem.

[BarryLhm]

maybe correcting the pattern is a better solution.