class HTMLProofer::Configuration

def parse_long_opt(long_opt)

e.g. '--allow-hash-href' => :allow_hash_href.
Converts the option into a symbol,
def parse_long_opt(long_opt)
pt[2..].sub("[no-]", "").sub(/ .*/, "").tr("-", "_").gsub(/[\[\]]/, "").to_sym