When _readlink is called the -f param must not be passed. _readlink (with leading underscore) is a wrapper around readlink (without leading underscore). _readlink already passes -f to readlink, that's why it must not be passed to _readlink.
Add InternetX autoDNS dns api support
Add namesilo.com dns api support
support both debian and redhat
dns_ispconfig.sh: Remove unnecessary permission in api user
Update from original
Dev
added dns api support for servercow
... didn't see this line in spellcheck ... :S
fixed remaining issues from shellcheck
replaced tab with space
Add support for inwx.de API
Added support for UnoEuro API
https://github.com/Neilpang/acme.sh/issues/1130 https://github.com/Neilpang/acme.sh/issues/990
sed -E
grep -q
printf -v