In ntfsresize.c from the Ubuntu Oneiric package version 1:2011.4.12AR.4-2ubuntu2 we have the following:
err_printf("%d clusters are referenced multiply"
" times.\n", fsck->multi_ref);
That should likely be "referenced multiple times".
While looking at the code, I found the same likely typo in a total of four files (based on our soruce for Oneiric (version string 1:2011.4.12AR.4-2ubuntu2); although the above is the only one that will be shown to an user, I went ahead and changed all four.
Unfortunately, I cannot find a place to submit the patch here. As such, I have added a branch in the Ubuntu bug with it. I would have attached the diff here, but the forum software is complaing about the file extention.
Please correct me as needed.