##### 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

return self._update_job(name, job, self.do_add_job)
    def do_add_job(self, lines, comment, job):
        lines.append(comment)
        lines.append("%s" % (job))
    def remove_job(self, name):
        return self._update_job(name, "", self.do_remove_job)
    def do_remove_job(self, lines, comment, job):
        return None
    def add_env(self, decl, insertafter=None, insertbefore=None):
        if not (insertafter or insertbefore):
            self.lines.insert(0, decl)
            return
        if insertafter:
            other_name = insertafter
        elif insertbefore:
            other_name = insertbefore
        other_decl = self.find_env(other_name)
        if len(other_decl) > 0:
            if insertafter:
                index = other_decl[0] + 1
            elif insertbefore:
                index = other_decl[0]
            self.lines.insert(index, decl)
            return
        self.module.fail_json(msg="Variable named '%s' not found." % other_name)
    def update_env(self, name, decl):