Force trailing slashes in magento.

gistfile1.apacheconf

    #RewriteBase /magento/

############################################
## force trailing slashes

    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteCond %{REQUEST_URI} !.html
    RewriteCond %{REQUEST_URI} !.php
    RewriteCond %{QUERY_STRING} !price
    RewriteCond %{REQUEST_URI} !(.*)/$
    RewriteRule ^(.*)$ http://%{HTTP_HOST}/$1/ [L,R=301]

############################################
## workaround for HTTP authorization
## in CGI environment