link system call cannot create a hard link to a symbolic link.
basename and dirname now treat // as different from / on platforms
where the two are distinct.
+ `cp --link --no-dereference' now works also on systems where the
+ link system call cannot create a hard link to a symbolic link.
+ This change has no effect on systems with a Linux-based kernel.
+
csplit and nl now use POSIX syntax for regular expressions, not
Emacs syntax. As a result, character classes like [[:print:]] and
interval expressions like A\{1,9\} now have their usual meaning,