[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_ban.php

@@ -109,7 +109,7 @@ class acp_ban
 			'L_NO_BAN_CELL'			=> $l_no_ban_cell,
 
 			'S_USERNAME_BAN'	=> ($mode == 'user') ? true : false,
-			
+
 			'U_ACTION'			=> $this->u_action,
 			'U_FIND_USERNAME'	=> append_sid("{$phpbb_root_path}memberlist.$phpEx", 'mode=searchuser&form=acp_ban&field=ban'),
 		));