K 10
svn:author
V 6
jilles
K 8
svn:date
V 27
2010-05-01T14:29:33.468241Z
K 7
svn:log
V 436
MFC r206773: ln: Do not delete a file by hardlinking it to itself.

Two pathnames refer to the same directory entry iff the directories match
and the final components' names match.

Example: (assuming file1 is an existing file)
  ln -f file1 file1
This now fails while leaving file1 intact. It used to delete file1 and then
complain it cannot be linked because it is gone.

With -i, this error is detected before the question is asked.

END