public function setSuffix($suffix)
    {
        $suffix = ltrim((string) $suffix, '.');
        $this->suffix = '.' . $suffix;
        return $this;
    }
public function setSuffix($suffix)
    {
        $suffix = ltrim((string) $suffix, '.');
        $this->suffix = '.' . $suffix;
        return $this;
    }
public function setSuffix ( $ suffix ) { $ suffix = ltrim ( ( string ) $ suffix , '.' ) ; $ this -> suffix = '.' . $ suffix ; return $ this ; }
Set file suffix

@param  string $suffix
@return DefaultResolver
Set file suffix