Add linux_base-c6-6.5 package to the bash vulnerability report.

Approved by:	swills (mentor)


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@369330 35697150-7ecd-e111-bb59-0022644237b5
emulators/linux_base-c6: Use a CVE-free version of bash

Bash 4.1.2 as shipped with this Linux base port is vulnerable to
CVE-2014-6271 and CVE-2014-7169.  As EL6 policy is to backport security
patches, use a RPM that is not vulnerable to either remote code execution
vulnerability.

While here:
 - Add the proper UDPATES Master site
 - remove sample files installation from Makefile, in favor of @sample

Approved by:	swills (mentor)
Security:	71ad81da-4414-11e4-a33e-3c970e169bc2


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@369331 35697150-7ecd-e111-bb59-0022644237b5