Description of problem:
SSIA

Version-Release number of selected component (if applicable):
virt-manager-0.9.0-8.fc16.noarch (f16 virt-preview repo)

How reproducible:
always

Steps to Reproduce:
1. run virt-manager on computer where ssh-askpass is *not* installed
2. add a remote ssh connection, try to connect to it
3.
  
Actual results:
cryptic error message is thrown (full output in additional info)

Expected results:
first virt-manager says that it needs ssh-askpass,
second virt-manager asks PackageKit to install it

Additional info: Error message:
===========================
Unable to open a connection to the libvirt management daemon.

Libvirt URI is: qemu+ssh://root.29.7/system

Verify that:
 - The 'libvirtd' daemon has been started
----------------------------
Details:

Unable to open a connection to the libvirt management daemon.

Libvirt URI is: qemu+ssh://root.29.7/system

Verify that:
 - The 'libvirtd' daemon has been started


Cannot recv data: ssh_askpass: exec(/usr/libexec/openssh/ssh-askpass): No such file or directory

Permission denied, please try again.

ssh_askpass: exec(/usr/libexec/openssh/ssh-askpass): No such file or directory

Permission denied, please try again.

ssh_askpass: exec(/usr/libexec/openssh/ssh-askpass): No such file or directory

Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password).
: Connection reset by peer

Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/connection.py", line 1146, in _open_thread
    self.vmm = self._try_open()
  File "/usr/share/virt-manager/virtManager/connection.py", line 1130, in _try_open
    flags)
  File "/usr/lib64/python2.7/site-packages/libvirt.py", line 102, in openAuth
    if ret is None:raise libvirtError('virConnectOpenAuth() failed')
libvirtError: Cannot recv data: ssh_askpass: exec(/usr/libexec/openssh/ssh-askpass): No such file or directory

Permission denied, please try again.

ssh_askpass: exec(/usr/libexec/openssh/ssh-askpass): No such file or directory

Permission denied, please try again.

ssh_askpass: exec(/usr/libexec/openssh/ssh-askpass): No such file or directory

Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password).
: Connection reset by peer