优化错误提示

pkgs/ioswitch/exec/executor.go

@@ -79,7 +79,11 @@ func (s *Executor) runOps(ops []Op, ctx *ExecContext, cancel context.CancelFunc)
 						err = context.Canceled
 					}
 				} else {
-					err = multierror.Append(err, fmt.Errorf("%T: %w", op, e))
+					if err == context.Canceled {
+						err = e
+					} else {
+						err = multierror.Append(err, fmt.Errorf("%T: %w", op, e))
+					}
 				}
 				lock.Unlock()