Description of problem:
Hypervisor host can't register to satellite WEB UI when using special character. but virt-who can send json information successfully.


Version-Release number of selected component (if applicable):
Satellite6.2.7-snap2.0
virt-who-0.17-10.el6sat.noarch
Hypervisor: libvirt

How reproducible:
Always

Steps to Reproduce:

1. Register virt-who to satellite6.2.7 
2. Register Hypervisor guest to satellite6.2.7 on Organization:Default_Organization
3. change Hypervisor short hostname using special characters ,such as "hp-z220-06a!#$%^&*"
# hostname
hp-z220-06a!#$%^&*
# hostname -s
hp-z220-06a!#$%^&*
4. vim /etc/virt-who.d/libvirt.conf
[test-libvirt]
type=libvirt
server=10.66.144.4
username=root
password=XXXXX
owner=Default_Organization
env=Library
rhsm_username=admin
rhsm_password=XXXXX
hypervisor_id=hostname
rhsm_password=XXXXXXXXX
 
5. restart virt-who service
# service virt-who restart
Stopping virt-who: [  OK  ]
Starting virt-who: [  OK  ]

6. hypervisor host and guest json info sent successfully, and the json info should be print with hypervisor's hostname with special characters.

MainProcess(10816):MainThread @subscriptionmanager.py:hypervisorCheckIn:194 - Sending update in hosts-to-guests mapping for config "test-libvirt": 1 hypervisors and 2 guests found
2017-01-18 21:41:52,011 [virtwho.main DEBUG] MainProcess(10816):MainThread @subscriptionmanager.py:hypervisorCheckIn:195 - Host-to-guest mapping: {
    "hp-z220-06a!#$%^&*": [
        {
            "guestId": "1f994abe-2df4-9cbd-9b60-d7a07a8d6f67", 
            "state": 5, 
            "attributes": {
                "active": 0, 
                "virtWhoType": "libvirt"
            }
        }, 
        {
            "guestId": "65681fef-4d66-a804-9825-66a4a22b053d", 
            "state": 5, 
            "attributes": {
                "active": 0, 
                "virtWhoType": "libvirt"
            }
        }
    ]
}
2017-01-18 21:41:55,968 [virtwho.main DEBUG] MainProcess(10816):MainThread @executor.py:send_report:101 - Report for config "test-libvirt" sent
2017-01-18 21:42:48,045 [virtwho.test-libvirt DEBUG] Libvirtd-1(10820):MainThread @libvirtd.py:_listDomains:245 - Libvirt domains found: 1f994abe-2df4-9cbd-9b60-d7a07a8d6f67, 65681fef-4d66-a804-9825-66a4a22b053d
7. check Default_Organization->Hosts->Content Hosts
Hypervisor host can not register to satellite in web ui.

Actual results:
Hypervisor host can not register to satellite in web ui.


Expected results:
Hypervisor host should be registered to satellite in web ui.

Additional info: