##### SUMMARY
cron contains call to Display.deprecated or AnsibleModule.deprecate and is scheduled for removal

```
lib/ansible/modules/cron.py:626:8: ansible-deprecated-version: Deprecated version ('2.12') found in call to Display.deprecated or AnsibleModule.deprecate (0%)
lib/ansible/modules/cron.py:631:8: ansible-deprecated-version: Deprecated version ('2.12') found in call to Display.deprecated or AnsibleModule.deprecate (0%)
```

##### ISSUE TYPE
 - Bug Report

##### COMPONENT NAME
```
lib/ansible/modules/cron.py
```

##### ANSIBLE VERSION
```
2.12
```

##### CONFIGURATION
N/A

##### OS / ENVIRONMENT
N/A

##### STEPS TO REPRODUCE
N/A

##### EXPECTED RESULTS
N/A

##### ACTUAL RESULTS
N/A

newlines = []
        for l in self.lines:
            if re.match(r'^%s=' % name, l):
                addenvfunction(newlines, decl)
            else:
                newlines.append(l)
        self.lines = newlines
    def render(self):
        """
        Render this crontab as it would be in the crontab.
        """
        crons = []
        for cron in self.lines:
            crons.append(cron)
        result = '\n'.join(crons)
        if result:
            result = result.rstrip('\r\n') + '\n'
        return result
    def _read_user_execute(self):