[ticket/12458] Apply Squiz.WhiteSpace.SuperfluousWhitespace.* to legacy code.

* There MUST NOT be trailing whitespace at the end of lines.
* There MUST NOT be whitespace before the first content of a file.
* There MUST NOT be whitespace after the last content of a file.
* Functions MUST NOT contain multiple empty lines in a row.

PHPBB3-12458

phpBB/includes/acp/acp_permission_roles.php

@@ -270,7 +270,7 @@ class acp_permission_roles
 			case 'edit':
 
 				if ($action == 'edit')
-				{					
+				{
 					$sql = 'SELECT *
 						FROM ' . ACL_ROLES_TABLE . '
 						WHERE role_id = ' . $role_id;