files: use pr_err instead of pr_perror

Signed-off-by: Andrew Vagin <avagin@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>

criu/files.c

@@ -391,7 +391,7 @@ static int dump_one_file(struct parasite_ctl *ctl, int fd, int lfd, struct fd_op
 	const struct fdtype_ops *ops;
 
 	if (fill_fd_params(ctl, fd, lfd, opts, &p) < 0) {
-		pr_perror("Can't get stat on %d", fd);
+		pr_err("Can't get stat on %d\n", fd);
 		return -1;
 	}