MAGETWO-71765: Impossible perform partial invoice for order placed with taxes and PayPal Payflow Pro

- Fixed code style.

Author: Michael Yu

app/code/Magento/Paypal/Test/Unit/Model/PayflowproTest.php

@@ -346,11 +346,10 @@ public function testCaptureAmountRounding($amount, $setAmount, $expectedResult)
             ->method('postRequest')
             ->with(
                 $this->callback(function ($request) use ($expectedResult) {
-                    return is_callable([$request, 'getAmt']) && $request->getAmt() == $expectedResult;
-                }
-            ),
+                    return is_callable([$request, 'getAmt']) && $request->getAmt() == $expectedResult;}
+                ),
                 $this->isInstanceOf(PayflowConfig::class)
-                )
+            )
             ->willReturn($response);
 
         $this->payflowpro->capture($paymentMock, $amount);