Vagrant provision fails on the windows forwarder

[nmattam]

Vagrant provision fails on the windows forwarder with the following error.

==> f_win2012r2: Running chef-client...
==> f_win2012r2: [2018-01-16T10:38:52-08:00] FATAL: Configuration error NoMethodError: undefined method <<' for nil:NilClass ==> f_win2012r2: [2018-01-16T10:38:52-08:00] FATAL: C:/vagrant-chef/client.rb:32:in from_string'
==> f_win2012r2: [2018-01-16T10:38:52-08:00] FATAL: Aborting due to error in 'C:/vagrant-chef/client.rb'

It was noticed that chef-client 13.6.4 was installed on this box even though the omnibus version is set to 12.

C:\Users\vagrant>
C:\Users\vagrant>chef-client -v
Chef: 13.6.4

This issue is reported here and a workaround is suggested here. Following the workaround, I was able to successfully provision the windows forwarder.

Note:
I used a chef-client version <12.19 because of #142.

[nmattam]

PR: #165