##### SUMMARY
The `broadcast` address contains `global` in a Debian container running on Fedora.

I could not reproduce this when the Ansible controller runs on Mac OS X.

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
setup

##### ANSIBLE VERSION
```
ansible 2.8.4
  config file = /Users/yf30lg/.ansible.cfg
  configured module search path = [u'/Users/yf30lg/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
  ansible python module location = /Library/Python/2.7/site-packages/ansible
  executable location = /usr/local/bin/ansible
  python version = 2.7.10 (default, Feb 22 2019, 21:55:15) [GCC 4.2.1 Compatible Apple LLVM 10.0.1 (clang-1001.0.37.14)]
```

##### CONFIGURATION
```
# no output
```

##### OS / ENVIRONMENT
Controller: Fedora 31
Targets:
- Debian stable (container debian:stable)
- Fedora 31 (container fedora:lastest)

##### STEPS TO REPRODUCE

Prepare the container:
```
docker run -ti debian:stable /bin/bash
apt-get update
apt-get install -y python
```

Get the facts:
```
ansible -m setup -i $(docker ps -ql), -c docker all
```

##### EXPECTED RESULTS
I was hoping to get the broadcast address back, instead of a word `global`.

##### ACTUAL RESULTS

```
...
        "ansible_default_ipv4": {
...
            "broadcast": "global", 
...
```
collected_facts = collected_facts or {}
        
        
        
        
        command = dict(
            v4=[ip_path, '-4', 'route', 'get', '8.8.8.8'],
            v6=[ip_path, '-6', 'route', 'get', '2404:6800:400a:800::1012']
        )
        interface = dict(v4={}, v6={})
        for v in 'v4', 'v6':
            if (v == 'v6' and collected_facts.get('ansible_os_family') == 'RedHat' and
                    collected_facts.get('ansible_distribution_version', '').startswith('4.')):
                continue
            if v == 'v6' and not socket.has_ipv6:
                continue
            rc, out, err = self.module.run_command(command[v], errors='surrogate_then_replace')
            if not out:
                
                
                continue
            words = out.splitlines()[0].split()
            
            if len(words) > 0 and words[0] == command[v][-1]:
                for i in range(len(words) - 1):
                    if words[i] == 'dev':
                        interface[v]['interface'] = words[i + 1]
                    elif words[i] == 'src':