Add PV related case for libguestfs
libvirt.test: Fix a typo in qemu agent command test

Signed-off-by: Li Yang <liyang.fnst@cn.fujitsu.com>
Merge pull request #238 from liyangfnst/agent_fix

libvirt.test: Fix a typo in qemu agent command test
Fix a typo of case name
Merge pull request #223 from vanbogithub/bfan-dev

Add PV related case for libguestfs