[4.0.33]
* dd now accepts skip=nB and seek=nB, to advance past some number of bytes, n,
that need not be a multiple of the block size.
-* dd (without conv=notrunc) now uses ftruncate only on regular files
+* dd (without conv=notrunc) now complains only when ftruncate fails on a
+ regular file, a directory, or a shared memory object -- not when it fails
+ to truncate other types of files, like /dev/fd0.
* chmod --changes (-c) once again issues diagnostics only for the files
with changed permissions
* mkdir now gives one diagnostic (rather than two) for certain failures