Module opts

dump() -> egetopt:ret_plist()

get(OptName::egetopt:optname()) -> egetopt:optarg()

get(OptName::egetopt:optname(), Default::egetopt:optarg()) -> egetopt:optarg()

set(OptName::egetopt:optname(), OptArg::egetopt:optarg()) -> true

to_map(Args::egetopt:args(), Opts::egetopt:opts()) -> egetopt:retok(egetopt:ret_map()) | egetopt:ret_err()