[Darax The Good]

I installed this and it is working fine on 2.3.0. I changed the code a bit to take into account the number of characters. Our board uses~70 characters per line. The logic isn't perfect, but it works.

if ($maxlinessig!=0) {
      $linessig = explode("\n", $signature);
      if (count($linessig)>$maxlinessig) {
      	eval("standarderror(\"".gettemplate("error_sigtoolong")."\");");
        exit;
      }
	  //
	  //The intended logic here is for each line feed we must add 70 to our count, however this
	  //is a little overkill if the person for some reason actually presses enter here and there. 
	  //a little slack is given
	  //'
	  if( (strlen($signature)+(count($linessig)*35)) > ($maxlinessig * 70)){
	  	eval("standarderror(\"".gettemplate("error_sigtoolong")."\");");
        exit;
	  }
  }