Avoid traceback when http.query request cannot be performed (bsc#1128…

…554)

Improve error logging when http.query cannot be performed

salt/utils/http.py

@@ -580,11 +580,13 @@ def query(url,
         except salt.ext.tornado.httpclient.HTTPError as exc:
             ret['status'] = exc.code
             ret['error'] = six.text_type(exc)
+            log.error("Cannot perform 'http.query': {0} - {1}".format(url_full, ret['error']))
             return ret
-        except socket.gaierror as exc:
+        except (socket.herror, socket.error, socket.timeout, socket.gaierror) as exc:
             if status is True:
                 ret['status'] = 0
             ret['error'] = six.text_type(exc)
+            log.error("Cannot perform 'http.query': {0} - {1}".format(url_full, ret['error']))
             return ret
 
         if stream is True or handle is True: