all: reformat code

pkg/bbgo/exit_trailing_stop.go

@@ -71,10 +71,12 @@ func (s *TrailingStop2) Bind(session *ExchangeSession, orderExecutor *GeneralOrd
 	}
 }
 
+// getRatio returns the ratio between the price and the average cost of the position
 func (s *TrailingStop2) getRatio(price fixedpoint.Value, position *types.Position) (fixedpoint.Value, error) {
 	switch s.Side {
 	case types.SideTypeBuy:
-		// for short position
+		// for short position, it's:
+		//  (avg_cost - price) / price
 		return position.AverageCost.Sub(price).Div(price), nil
 	case types.SideTypeSell:
 		return price.Sub(position.AverageCost).Div(position.AverageCost), nil

pkg/dynamic/iterate.go

@@ -44,7 +44,7 @@ func IterateFields(obj interface{}, cb func(ft reflect.StructField, fv reflect.V
 			continue
 		}
 
-		if err := cb(ft, fv) ; err != nil {
+		if err := cb(ft, fv); err != nil {
 			return err
 		}
 	}

pkg/strategy/pivotshort/strategy.go

@@ -177,6 +177,7 @@ type Strategy struct {
 	bbgo.StrategyController
 }
 
+
 func (s *Strategy) ID() string {
 	return ID
 }