hosts/linux: fix undefined variable in NFS export [GH-2137]

CHANGELOG.md

@@ -11,6 +11,7 @@ BUG FIXES:
   - core: Handle the case where we get an EACCES cleaning up the .vagrant
     directory.
   - core: Fix exception on upgrade warnings from V1 to V2. [GH-2142]
+  - hosts/linux: NFS exporting works properly again. [GH-2137]
   - provisioners/chef: Work even with restrictive umask on user. [GH-2121]
   - provisioners/chef: Fix environment validation to be less restrictive.
   - provisioners/puppet: No more "shared folders cannot be found" error.

plugins/hosts/linux/host.rb

@@ -58,7 +58,7 @@ module VagrantPlugins
 
         output = TemplateRenderer.render('nfs/exports_linux',
                                          :uuid => id,
-                                         :ip => ip,
+                                         :ips => ips,
                                          :folders => folders,
                                          :user => Process.uid)