MAGETWO-44075: Incorrect prices on product page for products with custom option

    - Fix static test failures

Author: Yu Tang

app/code/Magento/Tax/Test/Unit/Model/Calculation/RowBaseAndTotalBaseCalculatorTestCase.php

@@ -244,7 +244,11 @@ protected function initMockCalculationTool($isTaxIncluded)
         );
         $this->mockCalculationTool->expects($this->atLeastOnce())
             ->method('round')
-            ->willReturnCallback(function ($price) {return round($price, 2);});
+            ->willReturnCallback(
+                function ($price) {
+                    return round($price, 2);
+                }
+            );
     }
 
     /**

app/code/Magento/Tax/Test/Unit/Model/Calculation/UnitBaseCalculatorTest.php

@@ -71,7 +71,10 @@ public function setUp()
         $this->mockCalculationTool->expects($this->any())
             ->method('round')
             ->withAnyParameters()
-            ->willReturnCallback(function ($price) {return round($price, 2);});
+            ->willReturnCallback(function ($price) {
+                    return round($price, 2);
+                }
+            );
         $this->mockConfig = $this->getMockBuilder('\Magento\Tax\Model\Config')
             ->disableOriginalConstructor()
             ->getMock();