sources: fix pr_perror usage

This is log cleanup patch.
Pr_perror prints new line by itself.
Signed-off-by: Stanislav Kinsburskiy <skinsbursky@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>

criu/cr-check.c

@@ -879,7 +879,7 @@ static int check_autofs(void)
 
 	dir = mkdtemp(template);
 	if (!dir) {
-		pr_perror("failed to construct temporary name\n");
+		pr_perror("failed to construct temporary name");
 		goto free_options;
 	}
 
@@ -891,7 +891,7 @@ static int check_autofs(void)
 	ret = check_autofs_pipe_ino();
 
 	if (umount(dir))
-		pr_perror("failed to umount %s\n", dir);
+		pr_perror("failed to umount %s", dir);
 
 unlink_dir:
 	if (rmdir(dir))

criu/namespaces.c

@@ -170,7 +170,7 @@ int join_ns_add(const char *type, char *ns_file, char *extra_opts)
 		jn->nd = &mnt_ns_desc;
 		join_ns_flags |= CLONE_NEWNS;
 	} else {
-		pr_perror("invalid namespace type %s\n", type);
+		pr_err("invalid namespace type %s\n", type);
 		goto err;
 	}