Send to cannonizeHostPort port parameter as string instead of integer.

Change-Id: I5a3082abee5f27f84a7731d783027a30fa02d846
Bug-Url: https://bugzilla.redhat.com/1127776
Signed-off-by: Artyom Lukianov <alukiano@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/31209
Reviewed-by: Francesco Romani <fromani@redhat.com>
Reviewed-by: Dan Kenigsberg <danken@redhat.com>