NLSR

Steps to reproduce:

1. write configuration file

   general {
     network /arizona
     site /arizona/cs
     router /%C1.Router/r1
   }
   
   neighbors {
     neighbor {
       name /arizona/cs/%C1.Router/r2
       face-uri udp4://h1x2:6363
     }
   }
   
   fib {
     max-faces-per-perfix 1
   }
   
   advertising {
     prefix /r1
   }
   
   security {
     validator {
       trust-anchor {
         type any
       }
     }
   }
   

2. start NLSR with this configuration file

Expected: NLSR starts with log-level set to "default value INFO"

Actual: NLSR terminates with error "No such node (log-level)"

Version: a2228c6e1f4942e50336d83e359f8b536e94073e