That looks better.

Something else to remember about strtonum() is that it won't allow
whitespace or garbage at either end of the number.  You can call
atoi() with "    123sdf" and get a result, but strtonum() will reject
this.  This means that numeric tokens must be correctly precisely cut
from the stream.

I can't tell if that is the case, because the newsyslog line parsing code
too artisanal.