HP-UX 11, Tru64, AIX, IRIX 6.5, and Cygwin, "ls -l" now displays the presence
of an ACL on a file via a '+' sign after the mode, and "cp -p" copies ACLs.
+ od now aligns fields across lines when printing multiple -t
+ specifiers, and no longer prints fields that resulted entirely from
+ padding the input out to the least common multiple width.
* Noteworthy changes in release 6.12 (2008-05-31) [stable]