Fix CS

Author: lucasmichot

src/Omnipay/Common/CreditCard.php

@@ -141,9 +141,9 @@ public function validate()
             throw new InvalidCreditCardException('Card number is invalid');
         }
 
-	    if (!is_null($this->getNumber()) && !preg_match('/^\d{12,19}$/i', $this->getNumber())) {
-		    throw new InvalidCreditCardException('Card number should have 12 to 19 digits');
-	    }
+        if (!is_null($this->getNumber()) && !preg_match('/^\d{12,19}$/i', $this->getNumber())) {
+            throw new InvalidCreditCardException('Card number should have 12 to 19 digits');
+        }
     }
 
     public function getTitle()

tests/Omnipay/Common/CreditCardTest.php

@@ -596,6 +596,6 @@ public function testGender()
     public function testInvalidShortCard()
     {
         $this->card->setNumber('43');
-	    $this->card->validate();
+        $this->card->validate();
     }
 }