Re-enable automatic review request.

Change-Id: I37289eb847d0fa3a402328defea9d903e0cea7e3
diff --git a/backflip b/backflip
index 6b7fec9..49efb43 100755
--- a/backflip
+++ b/backflip
@@ -376,7 +376,7 @@
     fi
 else
   print_info "Request review."
-  #git review $REF_BRANCH
+  git review $REF_BRANCH
   if [ $? -ne 0 ]; then
     print_info "Cannot request review"
     clean 1