Changes to directory unix(2)

Changes to directory:
commit c606f05b8adf99134566e97a767b014e39f89a63
Author: Herbert Valerio Riedel <hvr@gnu.org>
Date:   Thu Nov 7 14:08:38 2013 +0100

    Update aux files `config.{guess,sub}` and `install-sh`

    This updates the files to the versions bundled with GNU automake 1.13.3

    Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>

Changes to unix:
commit 0c59426912f0104f9d79aab4dbe7d9a491f3fe32
Author: Herbert Valerio Riedel <hvr@gnu.org>
Date:   Thu Nov 7 13:48:36 2013 +0100

    Kill trailing whitespace

    Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>

commit 48a72e8753a1e90ad24335db9bf241892610375b
Author: Herbert Valerio Riedel <hvr@gnu.org>
Date:   Thu Nov 7 13:42:51 2013 +0100

    Remove misleading paragraph in `fdToHandle`'s Haddock

    The removed paragraph is obsolete and does no longer apply to the
    implementation as noted by Duncan in #8286.

    Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>