Renamed two string formatting placeholders in two phrases to make it clearer. (x_words became x_word, x_fields became x_field)
Renamed two string formatting placeholders in two phrases to make it
clearer. (x_words became x_word, x_fields became x_field)

tiborsimko/invenio,inveniosoftware/invenio,inveniosoftware/invenio,tiborsimko/invenio