Update CreateTest so that the resultJson variable fits in one line

Author: dmanners

app/code/Magento/Checkout/Test/Unit/Controller/Account/CreateTest.php

@@ -112,7 +112,7 @@ public function testExecute()
             ->with(100)
             ->will($this->returnValue($customer));
 
-        $resultJson = '{"errors": "false", "message": "A letter with further instructions will be sent to your email."}';
+        $resultJson = '{"errors":"false", "message":"A letter with further instructions will be sent to your email."}';
         $this->resultFactory->expects($this->once())
             ->method('create')
             ->with(ResultFactory::TYPE_JSON)