core: dup the synced folder options [GH-2134]

CHANGELOG.md

@@ -1,6 +1,9 @@
 ## 1.3.1 (unreleased)
 
+BUG FIXES:
 
+  - provisioners/puppet: No more "shared folders cannot be found" error.
+    [GH-2134]
 
 ## 1.3.0 (September 5, 2013)
 

plugins/kernel_v2/config/vm.rb

@@ -138,6 +138,7 @@ module VagrantPlugins
         end
 
         options ||= {}
+        options = options.dup
         options[:guestpath] = guestpath.to_s.gsub(/\/$/, '')
         options[:hostpath]  = hostpath
 

plugins/provisioners/puppet/provisioner/puppet.rb

@@ -36,10 +36,8 @@ module VagrantPlugins
             @expanded_manifests_path, manifests_guest_path, folder_opts)
 
           # Share the module paths
-          count = 0
           @module_paths.each do |from, to|
             root_config.vm.synced_folder(from, to, folder_opts)
-            count += 1
           end
         end