Fix several issues with go vet and go fmt

For some reason, `go vet` and `go fmt` validate does not capture
several issues.

The following was the output of `go vet`:
```
ubuntu@ubuntu:~/docker$ go vet ./... 2>&1 | grep -v ^vendor | grep -v '^exit status 1$'
cli/command/formatter/container_test.go:393: possible formatting directive in Log call
volume/volume_test.go:257: arg mp.RW for printf verb %s of wrong type: bool
```

The following was the output of `go fmt -s`:
```
ubuntu@ubuntu:~/docker$ gofmt -s -l . | grep -v ^vendor
cli/command/stack/list.go
daemon/commit.go
```

Fixed above issues with `go vet` and `go fmt -s`

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

daemon/commit.go

@@ -240,8 +240,8 @@ func (daemon *Daemon) Commit(name string, c *backend.ContainerCommitConfig) (str
 	}
 
 	attributes := map[string]string{
-		"comment": c.Comment,
-		"imageID": id.String(),
+		"comment":  c.Comment,
+		"imageID":  id.String(),
 		"imageRef": imageRef,
 	}
 	daemon.LogContainerEventWithAttributes(container, "commit", attributes)