vdsm: software: Fix documentation string
vdsm: software: Fix documentation string

Just a very minor fix of the documentation strings to have
a more beautiful impression of the code.

Change-Id: I4c201808f90a6e3afa6005a5c7ef183e690a549a
Signed-off-by: Dominik Holler <339e55f44c1e96f4260b566a19236350d4150875@redhat.com>

oVirt/ovirt-host-deploy,oVirt/ovirt-host-deploy,oVirt/ovirt-host-deploy