Handle config coming from CONFIG_D directory

[bohwaz]

Fix #20

Using some code from Dehydrated

[silkeh]

Thanks! Can you fix the following shellcheck complaints?

In pdns_api.sh line 106:
    [[ -n "${ZSH_VERSION:-}" ]] && set +o noglob || set +f
                                ^-- SC2015: Note that A && B || C is not if-then-else. C may run when A is true.

In pdns_api.sh line 119:
    [[ -n "${ZSH_VERSION:-}" ]] && set -o noglob || set -f
                                ^-- SC2015: Note that A && B || C is not if-then-else. C may run when A is true.

[bohwaz]

Sorry no idea what that line does, just copied the code from dehydrated :)

[silkeh]

In that case: 1) add a note that the code is based on dehydrated, and 2) add # shellcheck disable=SC2015 above the two lines.

[bohwaz]

OK actually fixed the code, it's better than ignoring a warning. Note added.

[silkeh]

Merged. Thanks!

[bohwaz]

No prob, thanks to you :)