View string needs escape if back slash on end

IMO namespaces are *not* directories and should always be referenced with backslashes. What works versus what "should be" vary quite a bit, but in this case the slash directions don't really matter because `view()` uses FileLocator's `locateFile()` which has the following code:

PHP Code:

        // Standardize slashes to handle nested directories.
        $file = strtr($file, '/', '\\'); 


... which replaces all forward slashes with backslashes prior to executing the lookup. Bottom line is: backslash is more technically correct (opinion), either slash will work, backslash requires escaping.