TODO revision 1.6 
1resize_ffs(8) TODO list
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3* Add support for swapped byte order
4* Fix support for disk blocks of size other than 512 bytes
5* Add support for plain files (primarily to ease testing)
6* Extend to support UFS2.  Probably growth first, then shrinking separately.
7* Expand the testing done in src/tests/sbin/resize_ffs
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