Custom Flag/Arg Parsing Library Fails On Octal-looking Strings

Randomly-generated tmpdirs used as outputs for CRD gen can trip up the options parser in this repo:

```
Error: unable to parse option \"output:crd:dir=./tmp.08cAgAZQNm/chart/crds\": [invalid digit '8' in octal literal (at <input>:1:7)]
```