This allows us test it

only test for help text. We test most of the other functionality with
the alpine-installer-testsuite.

When DIR is specified we run in non-interactive mode and should not
block.

Let -h return success instead of error.

Send usage help to stderr on errors.

Use argument instead of option to set the NTP client non-interactivey
and make sure it doesn't block.

Give proper error message if uinsupported client is specified

send -h to stdout

Dermot Bradley authored 2 years ago and Natanael Copa committed 2 years ago

When modinfo is called to determine firmware ensure the installed
kernel version is used, not the running kernel version.

Busybox's modinfo recently had "-k" supported added to it.

send it to stdout with -h

it was missed due to the *.sh in .gitignore

Make sure that we remove the proxy with setup-proxy none.

Also allow https proxies while at it and mock wget for testing

print usage help text to stderr on invalid option