Modify GCE generator to allow empty network names (to be added by whatever applies it to GCE).
Modify GCE generator to allow empty network names (to be added by whatever applies it to GCE).

google/capirca,pettai/capirca,jethrogb/capirca,rarcotvmw/capirca,google/capirca,ryantierney513/capirca,ryantierney513/capirca,ryantierney513/capirca,sneakywombat/capirca,sneakywombat/capirca,google/capirca,rarcotvmw/capirca,google/capirca,sneakywombat/capirca,jethrogb/capirca,pettai/capirca,rarcotvmw/capirca