mistranslation: 0.771
semantic: 0.669
device: 0.655
other: 0.576
graphic: 0.355
network: 0.348
boot: 0.258
instruction: 0.236
vnc: 0.210
socket: 0.205
KVM: 0.154
assembly: 0.067

rename snapshot by qemu-img
Additional information:
I have no idea to rename a snapshot which created by `qemu-img snapshot -c`, I think it is a useful function