p2v: In non-GUI mode, make sure the progress of virt-p2v is visible (RHBZ#1229386).

By changing the logging mode of the p2v.service unit, we can make sure
that the progress of virt-p2v is visible in non-GUI mode at the
console.

Since the output is now always shown on the console, there's no need
to print the journalctl command for following that output when the
user logs in.

p2v/issue

@@ -3,10 +3,9 @@ virt-p2v - Convert a physical machine to use KVM.
 ***
 The root password is "p2v" (without quotes).
 
-To see/follow the status of virt-p2v, do:
+To see the status of virt-p2v, do:
 
                 systemctl status p2v -l
-                journalctl -u p2v --follow
 
 Virt-p2v may take some time to start up.  If virt-p2v is not running
 after a few minutes, you can start it by typing:

p2v/p2v.service

@@ -31,6 +31,8 @@ After=network.target
 Type=oneshot
 ExecStart=/usr/bin/launch-virt-p2v
 RemainAfterExit=yes
+StandardOutput=journal+console
+StandardError=inherit
 
 [Install]
 WantedBy=multi-user.target