Trailer lines are lines that look similar to RFC 822 e-mail headers, at the end of the otherwise free-form part of a commit message, such as 'Co-authored-by: …'.
Urtan n uqerru d izirigen iceban iqerra n yizen i yettusbadun s C 822, i yettwarnan ɣer taggara n wurti n yizen ilelli n tercivt, am 'Co-authored-by: ...'.