Update Italian man page translation

[guillem@debian.org:
 - Replace logical NOT with NON.
 - Add missing spaces. ]

Closes: #742449

Signed-off-by: Guillem Jover <guillem@debian.org>

debian/changelog

@@ -11,6 +11,7 @@ dpkg (1.17.7) UNRELEASED; urgency=low
 
   [ Updated manpages translations ]
   * German (Helge Kreutzmann).
+  * Italian (Beatrice Torracca). Closes: #742449
   * Swedish (Peter Krefting).
  
  -- Guillem Jover <guillem@debian.org>  Wed, 15 Jan 2014 19:02:55 +0100