Fixing error messages for requests with missing or invalid automate_w…

…orkspace.

library/manageiq_automate.py

@@ -69,9 +69,10 @@ def url(self):
             The url to connect to the workspace
         """
         url_str = self._module.params['manageiq_connection']['automate_workspace']
+        if url_str is None:
+            self._module.fail_json(msg='Required parameter \'automate_workspace\' is not specified')
         return self._api_url + '/' + url_str
 
-
     def href_slug_url(self, value):
         """
             The url to connect to the vmdb
@@ -90,6 +91,8 @@ def get(self, alt_url=None):
             url = self.url()
 
         result, _info = fetch_url(self._module, url, None, self._headers, 'get')
+        if result is None
+            self._module.fail_json(msg=_info['msg'])   
         return json.loads(result.read())