cmd/juju/machine: Enable GOMAXPROCS(NumCPU)

cmd/jujud/machine_test.go

 // Copyright 2012, 2013 Canonical Ltd.
 // Licensed under the AGPLv3, see LICENCE file for details.
 
 package main
 
 import (
         "os"
         "path/filepath"
         "reflect"
         "strings"
@@ skipping 397 matching lines @@
         calledChan := make(chan struct{}, 1)
         s.PatchValue(&useMultipleCPUs, func() { calledChan <- struct{}{} })
         // Now, start the agent, and observe that a JobManageEnviron agent
         // calls UseMultipleCPUs
         a := s.newAgent(c, m)
         defer a.Stop()
         go func() {
                 c.Check(a.Run(nil), gc.IsNil)
         }()
         // Wait for configuration to be finished
-        <-a.workersStarted
+        <-a.WorkersStarted()
         select {
         case <-calledChan:
         case <-time.After(coretesting.LongWait):
                 c.Errorf("we failed to call UseMultipleCPUs()")
         }
         c.Check(a.Stop(), gc.IsNil)
         // However, an agent that just JobHostUnits doesn't call UseMultipleCPUs
         m2, _, _ := s.primeAgent(c, version.Current, state.JobHostUnits)
         s.setFakeMachineAddresses(c, m2)
         a2 := s.newAgent(c, m2)
@@ skipping 460 matching lines @@
                 return err == nil && placeholder.String() == curl.WithRevision(23).String()
         }
         success := false
         for attempt := coretesting.LongAttempt.Start(); attempt.Next(); {
                 if success = checkRevision(); success {
                         break
                 }
         }
         c.Assert(success, gc.Equals, true)
 }