Issue 3706 - Update Puppet patch version

hiera/install_precise.py

 #!/usr/bin/env python 
 
 import distutils.spawn
 import io
 import os
 import subprocess
 import sys
 
 if distutils.spawn.find_executable('puppet') \
     and distutils.spawn.find_executable('hiera'):
   sys.exit(os.EX_OK)
 
 PUPPETLABS_SOURCES = '''
 deb http://apt.puppetlabs.com precise main
 deb-src http://apt.puppetlabs.com precise main'''
 
 PUPPETLABS_PREFS = '''
 # Puppetlabs packages (e.g. hiera) would attempt to install a puppet 3.x
 # or later release (which is not available in precise) if not pinned here
 Package: puppet puppet-common
-Pin: version 2.7.11-*
-Pin-Priority: 1000'''
+Pin: version 2.7.26-*
+Pin-Priority: 501'''
 
 PUPPETLABS_GPG_KEY = '''
 -----BEGIN PGP PUBLIC KEY BLOCK-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 Comment: GPGTools - http://gpgtools.org
 
 mQINBEw3u0ABEAC1+aJQpU59fwZ4mxFjqNCgfZgDhONDSYQFMRnYC1dzBpJHzI6b
 fUBQeaZ8rh6N4kZ+wq1eL86YDXkCt4sCvNTP0eF2XaOLbmxtV9bdpTIBep9bQiKg
 5iZaz+brUZlFk/MyJ0Yz//VQ68N1uvXccmD6uxQsVO+gx7rnarg/BGuCNaVtGwy+
 S98g8Begwxs9JmGa8pMCcSxtC7fAfAEZ02cYyrw5KfBvFI3cHDdBqrEJQKwKeLKY
@@ skipping 54 matching lines @@
 add_key_process = subprocess.Popen(['apt-key', 'add', '-'], stdin=subprocess.PIPE)
 add_key_process.communicate(PUPPETLABS_GPG_KEY)
 
 with io.open('/etc/apt/sources.list.d/puppetlabs.list', 'wb') as handle:
   handle.write(PUPPETLABS_SOURCES)
 
 with io.open('/etc/apt/preferences.d/puppetlabs', 'wb') as handle:
   handle.write(PUPPETLABS_PREFS)
 
 subprocess.check_call(['apt-get', '-y', 'update'])
-subprocess.check_call(['apt-get', '-y', 'install', 'puppet'])
-subprocess.check_call(['apt-get', '-y', 'install', 'hiera-puppet'])
+subprocess.check_call(['apt-get', '-y', 'install',
+                       '-o', 'Dpkg::Options::=--force-overwrite',
+                       'puppet', 'puppet-common', 'hiera-puppet'])
 
 if not os.path.exists('/etc/puppet/hiera.yaml'):
   realpath = os.path.realpath(__file__)
   dirname = os.path.dirname(realpath)
   config = os.path.join(dirname, 'hiera.yaml')
   if os.path.exists(config):
     os.symlink(config, '/etc/puppet/hiera.yaml')