autotest/autotest — pull request #397 by ypu (2012-06-15 04:31:38+00:00)
Title: KVM test: Use customized command to fetch the version of kvm and its userspace

We need to run the test for different kinds of host, so we need to use
customized command to fetch their version for rhel5 or rhel6. This patch
let use the "kvm_ver_cmd" and "kvm_userspace_ver_cmd" to get the version for
kvm or kvm userspace.

I have made the kvm_ver_cmd and kvm_userspace_ver_cmd to be self adapted for
both RHEL5 and RHEL6.

Signed-off-by: Jason Wang