cocci: apply the "pretty.h" part of "the_repository.pending"

Apply the part of "the_repository.pending.cocci" pertaining to
"pretty.h".

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

bisect.c

@@ -752,7 +752,8 @@ enum bisect_error bisect_checkout(const struct object_id *bisect_rev,
 	}
 
 	commit = lookup_commit_reference(the_repository, bisect_rev);
-	format_commit_message(commit, "[%H] %s%n", &commit_msg, &pp);
+	repo_format_commit_message(the_repository, commit, "[%H] %s%n",
+				   &commit_msg, &pp);
 	fputs(commit_msg.buf, stdout);
 	strbuf_release(&commit_msg);