base.rb in vagrant-unbundled-2.3.3.0

- old
+ new

@@ -458,10 +458,12 @@
             # and locks.
             Thread.new { @logger.info("Interrupted.") }.join
           end
 
           # Append in the options for subprocess
-          command << { notify: [:stdout, :stderr] }
+          # NOTE: We include the LANG env var set to C to prevent command output
+          #       from being localized
+          command << { notify: [:stdout, :stderr], env: {LANG: "C"}}
 
           Vagrant::Util::Busy.busy(int_callback) do
             Vagrant::Util::Subprocess.execute(@vboxmanage_path, *command, &block)
           end
         rescue Vagrant::Util::Subprocess::LaunchError => e