cmd/flux-wreck: remove debug code

Problem: Debug code in flux-wreck utility uses the 'inspect.lua'
module, which isn't installed along with the flux-core package.

Remove debug code to fix errors in installed package.

Fixes #1582

src/cmd/flux-wreck

@@ -632,7 +632,6 @@ prog:SubCommand {
             options[opt] = tonumber(val) or val
         end
     end
-    print (require 'inspect' (options))
     f:kvs_put ("lwj.options", options)
     f:kvs_commit ()
  end