extern bool CLI_MODE_DEBUG;
extern bool CLI_MODE_LAIDBACK;
extern bool CLI_ALLOW_NONOPT;
CLI_MODE_LAIDBACK -> false by default. enables laidback
mode, which downgrades all syntax errors to a warning.
CLI_ALLOW_NONOPT -> false by default. see
ezcli/specials for what this is.
CLI_MODE_DEBUG -> false by default. enables debug mode,
which prints useful debugging info about what option is run with what
input, when ezcli is validating, etc.
CLI_MODE_RECOMMEND -> true by default. enables recommend
mode, which prints recommendations (if any is found to be accurate
enough) for unrecognized inputs.