Fix for issue 7902.

Use utils.RFC3339NanoFixed ("2006-01-02T15:04:05.000000000Z07:00")
instead of time.RFC3339Nano to format our log timestamps - this way
things are aligned, in particular the nano seconds are padded with zeros

Signed-off-by: Doug Davis <dug@us.ibm.com>

daemon/logs.go

@@ -7,13 +7,13 @@ import (
 	"io"
 	"os"
 	"strconv"
-	"time"
 
 	"github.com/docker/docker/pkg/log"
 	"github.com/docker/docker/pkg/tailfile"
 
 	"github.com/docker/docker/engine"
 	"github.com/docker/docker/pkg/jsonlog"
+	"github.com/docker/docker/utils"
 )
 
 func (daemon *Daemon) ContainerLogs(job *engine.Job) engine.Status {
@@ -35,7 +35,7 @@ func (daemon *Daemon) ContainerLogs(job *engine.Job) engine.Status {
 		return job.Errorf("You must choose at least one stream")
 	}
 	if times {
-		format = time.RFC3339Nano
+		format = utils.RFC3339NanoFixed
 	}
 	if tail == "" {
 		tail = "all"