Work around relative solo.rb path bug

NOTE: This is redundant after matschaffer#199 is merged

rel matschaffer#212. Ohai doesn't like relative reference to solo.rb
Currently this is unix only. Not sure if this issue is still valid on
windows. Need to adjust fix to return original path on windows boxes.

lib/chef/knife/solo_cook.rb

@@ -195,9 +195,15 @@ def chef_version
         v[0].strip == 'Chef' ? v[1].strip : ''
       end
 
+      def node_chef_path
+        result ||= begin
+                    run_command("readlink -f #{chef_path}").stdout.strip
+                   end
+      end
+
       def cook
         ui.msg "Running Chef..."
-        cmd = "sudo chef-solo -c #{chef_path}/solo.rb -j #{chef_path}/#{node_config}"
+        cmd = "sudo chef-solo -c #{node_chef_path}/solo.rb -j #{node_chef_path}/#{node_config}"
         cmd << " -l debug" if debug?
         cmd << " -N #{config[:chef_node_name]}" if config[:chef_node_name]
         cmd << " -W" if config[:why_run]