Format creation dates using syntax described in RFC 822 sec 5.1
Format creation dates using syntax described in RFC 822 sec 5.1

inveniosoftware/invenio-formatter,tiborsimko/invenio-formatter,tiborsimko/invenio-formatter,inveniosoftware/invenio-formatter,tiborsimko/invenio-formatter,inveniosoftware/invenio-formatter