CGI#_no_crlf_check

# File tmp/rubies/ruby-3.3.0/lib/cgi/core.rb, line 191
def _no_crlf_check(str)
  if str
    str = str.to_s
    raise "A HTTP status or header field must not include CR and LF" if str =~ /[\r\n]/
    str
  else
    nil
  end
end