Update samba to 3.6.5.

                  =============================
                  Release Notes for Samba 3.6.5
                          April 30, 2012
                  =============================

This is a security release in order to address
CVE-2012-2111 (Incorrect permission checks when granting/removing
privileges can compromise file server security).

o  CVE-2012-2111:
  Samba 3.4.x to 3.6.4 are affected by a
  vulnerability that allows arbitrary users
  to modify privileges on a file server.

(taca)