examples/ubuntu: fix gyp deprecated option usage

Change-Id: If5eb910456054ce076d7b60007109cfb52162589
Reviewed-on: https://weave-review.googlesource.com/1093
Reviewed-by: Alex Vakulenko <avakulenko@google.com>
Reviewed-by: Vitaly Buka <vitalybuka@google.com>
1 file changed
tree: 478e3e862a909e9f80a02a2d82db591659112031
  1. libweave/