added --junc-pen; it does nothing for now

minimap.h

@@ -159,7 +159,7 @@ typedef struct {
 	int transition; // transition mismatch score (A:G, C:T)
 	int sc_ambi; // score when one or both bases are "N"
 	int noncan;      // cost of non-canonical splicing sites
-	int junc_bonus;
+	int junc_bonus, junc_pen;
 	int zdrop, zdrop_inv;   // break alignment if alignment score drops too fast along the diagonal
 	int end_bonus;
 	int min_dp_max;  // drop an alignment if the score of the max scoring segment is below this threshold