environs/ec2: use Go client on server.

testing/log.go

 package testing
 
 import (
         "launchpad.net/gocheck"
         "launchpad.net/juju/go/log"
 )
 
 // LoggingSuite redirects the juju logger to the test logger
 // when embedded in a gocheck suite type.
 type LoggingSuite struct {
         oldTarget log.Logger
+        oldDebug  bool
 }
 
 func (t *LoggingSuite) SetUpTest(c *gocheck.C) {
         t.oldTarget = log.Target
+        t.oldDebug = log.Debug
+        log.Debug = true
         log.Target = c
 }
 
 func (t *LoggingSuite) TearDownTest(c *gocheck.C) {
         log.Target = t.oldTarget
+        log.Debug = t.oldDebug
 }