[PATCH] tail should dereference watched file

[Ondrej Oprala]

Hi,

Since inotify is dereferencing the files it's told to watch (according 
to flags tail sets), the watched files should be dereferenced outside 
the inotify_* family of functions as well.
Example:
$ echo 1  > file
$ ln -sf file{,-link}
$ tail -F ./filelink > out 2>/dev/null
$ rm file
$ echo 2 > file
$ kill %1
$ cat out
results: out only contains the contents of "file" before it was deleted.
expected results: tail picks up on "file"'s reappearance.

To be precise, tail actually picks up on it. However, the list of 
watched files from inotify is a list of files after dereferencing, 
whereas tail compares it to the filenames of symlinks it got as 
arguments, resulting ofc in unhappy users.
Thanks,
Ondrej

tail-deref.patch
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