small dutch language error in StringMaxLengthRule /Csla/Properties/Resources.nl.resx

I noticed a small language error in the dutch translation of the StringMaxLengthRule resource string.
It is a common dutch error to use 'als' when it should be 'dan'.
In this case it should be 'dan', see for instance http://taaladvies.net/taal/advies/vraag/354/ (Dutch)