code style fixes

framework/yii/db/QueryBuilder.php

@@ -301,7 +301,6 @@ class QueryBuilder extends \yii\base\Object
 	{
 		return 'ALTER TABLE ' . $this->db->quoteTableName($table)
 			. ' DROP CONSTRAINT ' . $this->db->quoteColumnName($name);
-		
 	}
 
 	/**

framework/yii/db/sqlite/QueryBuilder.php

@@ -205,4 +205,3 @@ class QueryBuilder extends \yii\db\QueryBuilder
 		throw new NotSupportedException(__METHOD__ . ' is not supported by SQLite.');
 	}
 }
-

framework/yii/rbac/PhpManager.php

@@ -356,8 +356,7 @@ class PhpManager extends Manager
 	 */
 	public function saveItem($item, $oldName = null)
 	{
-		if ($oldName !== null && ($newName = $item->getName()) !== $oldName) // name changed
+		if ($oldName !== null && ($newName = $item->getName()) !== $oldName) { // name changed
-		{
 			if (isset($this->_items[$newName])) {
 				throw new InvalidParamException("Unable to change the item name. The name '$newName' is already used by another item.");
 			}