trendnet dru 818

git-svn-id: svn://svn.dd-wrt.com/DD-WRT@23657 52c4871e-980c-0410-b1e0-e73912ce01f8
fix wrong code

git-svn-id: svn://svn.dd-wrt.com/DD-WRT@23658 52c4871e-980c-0410-b1e0-e73912ce01f8
do only truncate it on models which require that fix

git-svn-id: svn://svn.dd-wrt.com/DD-WRT@23659 52c4871e-980c-0410-b1e0-e73912ce01f8