mount: fix typos in root_path_from_parent

colon operators are there obviously by mistake instead of semicolons
Signed-off-by: Pavel Tikhomirov <ptikhomirov@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>

criu/mount.c

@@ -834,8 +834,8 @@ static int root_path_from_parent(struct mount_info *m, char *buf, int size)
 	if (!m->parent)
 		return -1;
 
-	p_len = strlen(m->parent->mountpoint),
-	m_len = strlen(m->mountpoint),
+	p_len = strlen(m->parent->mountpoint);
+	m_len = strlen(m->mountpoint);
 
 	len = snprintf(buf, size, "%s", m->parent->root);
 	if (len >= size)