chore(spelling): s/primative/primitive/

dm/client.go

@@ -103,7 +103,7 @@ func (c *Client) CallService(path, method, action string, dest interface{}, read
 	return nil
 }
 
-// callHTTP is  a low-level primative for executing HTTP operations.
+// callHTTP is  a low-level primitive for executing HTTP operations.
 func (c *Client) callHTTP(path, method, action string, reader io.ReadCloser) (string, error) {
 	request, err := http.NewRequest(method, path, reader)