Kudos japhy
Your simplistic takes home the prize.. but you forgot to remove \n..

@cleanet = scalar <NETLIST>;
while (<NETLIST>) {
  if (s/^\+// or s/^\*\+//) { 
    $cleanet[-1] =~ s/\n/ /;
    $cleanet[-1] .= $_ 
  } else { push @cleanet, $_ }
}
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Thanks so much, now how do I get this back to where I started from.. After 80 characters and NOT on a word(something separated with a space) break it into two lines and put back the "+"?
Thanks again.