be more compatible

Author: Sean Bryant

accounts/definitions/account.rb

@@ -39,7 +39,7 @@
       group params[:gid] || params[:group]
       mode "0700"
       not_if do
-        ::Dir.exist?("#{node[:accounts][:dir]}/#{params[:name]}/.ssh")
+        ::File.exist?("#{node[:accounts][:dir]}/#{params[:name]}/.ssh")
       end
     end
   end