[OHAI-531] Regex for getting data from arp -na output is incorrect on Solaris2

````

  "network": {
    "interfaces": {
      "lo0": {
        "mtu": "8252",
        "index": "1",
        "flags": [
          "UP",
          "LOOPBACK",
          "RUNNING",
          "MULTICAST",
          "IPv6",
          "VIRTUAL"
        ],
        "type": "lo",
        "number": "0",
        "encapsulation": "Loopback",
        "addresses": {
          "127.0.0.1": {
            "family": "inet",
            "netmask": "255.0.0.0"
          },
          "::1": {
            "family": "inet6",
            "prefixlen": "128"
          }
        }
      },
      "net0": {
        "mtu": "1500",
        "index": "2",
        "flags": [
          "UP",
          "BROADCAST",
          "RUNNING",
          "MULTICAST",
          "IPv4",
          "CoS",
          "L3PROTECT"
        ],
        "type": "net",
        "number": "0",
        "encapsulation": "Ethernet",
        "addresses": {
          "37.153.96.33": {
            "family": "inet",
            "netmask": "255.255.254.0",
            "broadcast": "37.153.97.255"
          },
          "90:b8:d0:3e:81:c9": {
            "family": "lladdr"
          }
        },
        "arp": {
          "37.153.96.85": "90:b8:d0:2a:0a:23",
          "37.153.96.1": "00:00:5e:00:01:01",
          "37.153.96.57": "90:b8:d0:9d:d6:63",
          "37.153.96.33": "90:b8:d0:3e:81:c9"
        }
      },
      "net1": {
        "mtu": "1500",
        "index": "3",
        "flags": [
          "UP",
          "BROADCAST",
          "RUNNING",
          "MULTICAST",
          "IPv4",
          "CoS",
          "L3PROTECT"
        ],
        "type": "net",
        "number": "1",
        "encapsulation": "Ethernet",
        "addresses": {
          "10.224.0.34": {
            "family": "inet",
            "netmask": "255.255.248.0",
            "broadcast": "10.224.7.255"
          },
          "90:b8:d0:6c:08:fa": {
            "family": "lladdr"
          }
        },
        "arp": {
          "10.224.0.34": "90:b8:d0:6c:08:fa",
          "10.224.0.1": "00:00:5e:00:01:01"
        }
      }
    },
    "default_interface": "net0",
    "default_gateway": "37.153.96.1"
  },
````