Fix the report of the snapshotting progress
Fix the report of the snapshotting progress

michaelnsj/ubuntu-uncloud-recloud,hmalphettes/ubuntu-uncloud-recloud,ServiceMax-Engineering/ubuntu-uncloud-recloud,michaelnsj/ubuntu-uncloud-recloud,ServiceMax-Engineering/ubuntu-uncloud-recloud,hmalphettes/ubuntu-uncloud-recloud