nuageinit: by default to not enable nuageinit
MFC After: 1 day
Reported by: karels@
Approved by: re (cperciva)
(cherry picked from commit 5681636ead6790d5ad2c24a4712f010fcdfc926c)
(cherry picked from commit 2c5c85cbcfac0037aaafff130d9c4bdb5d341fe8)