cowboy/erlang: Introduce and use helper function to draw a horizontal separator banner.
cowboy/erlang: Introduce and use helper function to draw a horizontal separator banner.

rgolubtsov/dnsresolvd-multilang,rgolubtsov/dnsresolvd-multilang,rgolubtsov/dnsresolvd-multilang,rgolubtsov/dnsresolvd-multilang,rgolubtsov/dnsresolvd-multilang,rgolubtsov/dnsresolvd-multilang,rgolubtsov/dnsresolvd-multilang