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##### SUMMARY
When I read the `copy` documentation, I couldn't work out what it meant.  Unfortunately, this meant it sounded like it might be a weird sex joke.

It doesn't sound like a big problem, but in an ideal world, I think we should prefer to avoid weird sex jokes in an alias for a parameter called `force`.

##### ISSUE TYPE
- Feature Idea

##### COMPONENT NAME
copy

##### ADDITIONAL INFORMATION
Issue search tells me "thirsty" was added as an option to the `get_url` module.  In that context, it is appropriate.  But in the context of the `copy` module, it does not make sense, because `copy` only works in the upload direction.

The first three pages of Google Search results (Ansible thirsty) show people using "thirsty" for downloads only, not uploads.  Similarly for GitHub code search (copy thirsty language:YAML).
''' read the input and set the params attribute.
        This method is for backwards compatibility.  The guts of the function
        were moved out in 2.1 so that custom modules could read the parameters.
        '''
        
        self.params = _load_params()
    def _log_to_syslog(self, msg):
        if HAS_SYSLOG:
            module = 'ansible-%s' % self._name
            facility = getattr(syslog, self._syslog_facility, syslog.LOG_USER)
            syslog.openlog(str(module), 0, facility)
            syslog.syslog(syslog.LOG_INFO, msg)
    def debug(self, msg):
        if self._debug:
            self.log('[debug] %s' % msg)
    def log(self, msg, log_args=None):
        if not self.no_log:
            if log_args is None:
                log_args = dict()
            module = 'ansible-%s' % self._name
            if isinstance(module, binary_type):
                module = module.decode('utf-8', 'replace')
            
            if not isinstance(msg, (binary_type, text_type)):
                raise TypeError("msg should be a string (got %s)" % type(msg))
            
            
            if isinstance(msg, binary_type):
                journal_msg = remove_values(msg.decode('utf-8', 'replace'), self.no_log_values)
            else: