bigquery: fix panic in JobFromID

Change-Id: I0f37ac6b76db7d92c62a3f835ce8bd1e3a1969d5
Reviewed-on: https://code-review.googlesource.com/16970
Reviewed-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Ross Light <light@google.com>
diff --git a/bigquery/service.go b/bigquery/service.go
index d4e3a70..f9f5b56 100644
--- a/bigquery/service.go
+++ b/bigquery/service.go
@@ -314,7 +314,7 @@
 }
 
 func (s *bigqueryService) getJob(ctx context.Context, projectID, jobID string) (*Job, error) {
-	bqjob, err := s.getJobInternal(ctx, projectID, jobID, "configuration")
+	bqjob, err := s.getJobInternal(ctx, projectID, jobID, "configuration", "jobReference")
 	if err != nil {
 		return nil, err
 	}