fix typo in nextnode.py

2 jobs for 146-use-knot-mod-geoip-for-nextnode-address in 2 minutes and 6 seconds (queued for 1 second)
Status Job ID Name Coverage
  Lint
passed #30165
salt_lint

00:01:06

 
  Highstate
passed #30166
debug_highstate

00:01:00