seo furl gives incorrect conf_global.php info

of the file has not been edited to enable FURLS board says

Note: FURLs are not enabled. Please edit your 'conf_global.php' and at the bottom add:
$INFO\['use_friendly_urls'\] = '1';

those 2 \ in there cause

Parse error: syntax error, unexpected T_NS_SEPARATOR in /public_html/conf_global.php on line 21

error

Status:	Fixed
Version:	3.3.4
Fixed In:	3.3.5