style fix

Author: Nyholm

src/ClassDiscovery.php

@@ -175,7 +175,7 @@ protected static function instantiateClass($class)
         } catch (\Exception $e) {
             throw new ClassinstantiationFailedException('Unexcepced exception when instantiating class.', 0, $e);
         }
-        
+
         throw new ClassinstantiationFailedException('Could not instantiate class becuase parameter is neitehr a callable or a string');
     }
 }

src/MessageFactoryDiscovery.php

@@ -24,7 +24,7 @@ public static function find()
     {
         try {
             $messageFactory = static::findOneByType(MessageFactory::class);
-            
+
             return static::instantiateClass($messageFactory);
         } catch (DiscoveryFailedException $e) {
             throw new NotFoundException(