Index: work/gpstroke/cap.c
===================================================================
--- work/gpstroke/cap.c	(revision 7381)
+++ work/gpstroke/cap.c	(revision 7382)
@@ -174,9 +174,9 @@
 
 
 gp_pop_t pop = {
-	.len = 16*3,
-	.weak_kill = 5*3,
-	.clone_times = 2*3,
+	.len = 16,
+	.weak_kill = 5,
+	.clone_times = 2,
 	.create = pcb_create,
 	.score = pcb_score,
 	.mutate = pcb_mutate,
@@ -184,11 +184,16 @@
 	.dump = pcb_dump
 };
 
-int main()
+int main(int argc, char *argv[])
 {
 	int n;
+	char *ref_fn = "l.pnm";
+
+	if (argv[1] != NULL)
+		ref_fn = argv[1];
+
 	srand(time(NULL));
-	ref = pnm_load("wiki2.pnm");
+	ref = pnm_load(ref_fn);
 	canvas = image_new(ref->sx, ref->sy);
 
 	gp_setup(&pop);