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

@@ -346,8 +346,8 @@ 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);