Re: [PATCH v2 7/8] shortlog: parse trailer idents

+Shortlog will attempt to parse each trailer value as a `name <email>`
+identity. If successful, the mailmap is applied and the email is omitted
+unless the `--email` option is specified. If the value cannot be parsed
+as an identity, it will be taken literally and completely.

diff --git a/builtin/shortlog.c b/builtin/shortlog.c
index e6f4faec7c..28133aec68 100644
--- a/builtin/shortlog.c
+++ b/builtin/shortlog.c

@@ -228,6 +228,7 @@ static void insert_records_from_trailers(struct shortlog *log,
 	struct trailer_iterator iter;
 	const char *commit_buffer, *body;
 	struct strset dups = STRSET_INIT;
+	struct strbuf ident = STRBUF_INIT;
 
 	/*
 	 * Using format_commit_message("%B") would be simpler here, but

@@ -245,12 +246,17 @@ static void insert_records_from_trailers(struct shortlog *log,
 		if (strcasecmp(iter.key.buf, log->trailer))
 			continue;
 
+		strbuf_reset(&ident);
+		if (!parse_ident(log, &ident, value))
+			value = ident.buf;

 		if (strset_check_and_add(&dups, value))
 			continue;
 		insert_one_record(log, value, oneline);
 	}
 	trailer_iterator_release(&iter);
 
+	strbuf_release(&ident);
 	strset_clear(&dups);
 	unuse_commit_buffer(commit, commit_buffer);
 }