ovl: ovl_parse_param_lowerdir: Add missed '\n' for pr_err

JIRA: https://issues.redhat.com/browse/RHEL-83562

commit 441e36e
Author: Zhihao Cheng <chengzhihao1@huawei.com>
Date:   Fri Jul 5 09:15:10 2024 +0800

    ovl: ovl_parse_param_lowerdir: Add missed '\n' for pr_err

    Add '\n' for pr_err in function ovl_parse_param_lowerdir(), which
    ensures that error message is displayed at once.

    Fixes: b36a578 ("ovl: modify layer parameter parsing")
    Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
    Link: https://lore.kernel.org/r/20240705011510.794025-4-chengzhihao1@huawei.com
    Signed-off-by: Christian Brauner <brauner@kernel.org>

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>

Author: Miklos Szeredi

fs/overlayfs/params.c

@@ -445,7 +445,7 @@ static int ovl_parse_param_lowerdir(const char *name, struct fs_context *fc)
 		return 0;
 
 	if (*name == ':') {
-		pr_err("cannot append lower layer");
+		pr_err("cannot append lower layer\n");
 		return -EINVAL;
 	}
 
@@ -489,7 +489,7 @@ static int ovl_parse_param_lowerdir(const char *name, struct fs_context *fc)
 			 * there are no data layers.
 			 */
 			if (ctx->nr_data > 0) {
-				pr_err("regular lower layers cannot follow data lower layers");
+				pr_err("regular lower layers cannot follow data lower layers\n");
 				goto out_err;
 			}