+[4.5.8]
+* du can now process arbitrarily deep hierarchies (subject to virtual memory).
+ Before, it would segfault on hierarchies deeper than 20,000-30,000 levels.
+* test now works properly when invoked from a set user ID or set group ID
+ context and when testing access to files subject to alternate protection
+ mechanisms. For example, without this change, a set-UID program that invoked
+ `test -w F' (to see if F is writable) could mistakenly report that it *was*
+ writable, even though F was on a read-only file system, or F had an ACL
+ prohibiting write access, or F was marked as immutable.
+
[4.5.7]
* du would fail with more than one DIR argument when any but the last did not
contain a slash (due to a bug in ftw.c)
+
[4.5.6]
* du no longer segfaults on Solaris systems (fixed heap-corrupting bug in ftw.c)
* du --exclude=FILE works once again (this was broken by the rewrite for 4.5.5)
* `who -r' no longer segfaults when using non-C-locale messages
* df now displays a mount point (usually `/') for non-mounted
character-special and block files
+
[4.5.5]
* ls --dired produces correct byte offset for file names containing
nonprintable characters in a multibyte locale