Fix typo in ganeti-noded man page

Add a missing "in".

Signed-off-by: Michele Tartara <mtartara@google.com>
Reviewed-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

man/ganeti-noded.rst

@@ -31,7 +31,7 @@ Logging to syslog, rather than its own log file, can be enabled by
 passing in the ``--syslog`` option.
 
 The **ganeti-noded** daemon listens to port 1811 TCP, on all
-interfaces, by default. The port can be overridden by an entry the
+interfaces, by default. The port can be overridden by an entry in the
 services database (usually ``/etc/services``) or by passing the ``-p``
 option.  The ``-b`` option can be used to specify the address to bind
 to (defaults to ``0.0.0.0``).