dialplan: extended debug message to be more useful

modules/dialplan/dp_db.c

@@ -385,7 +385,6 @@ dpl_node_t * build_rule(db_val_t * values)
 		}
 	}
 
-	LM_DBG("build_rule\n");
 	GET_STR_VALUE(repl_exp, values, 6);
 	if(repl_exp.len && repl_exp.s){
 		repl_comp = repl_exp_parse(repl_exp);
@@ -411,6 +410,9 @@ dpl_node_t * build_rule(db_val_t * values)
 		}
 	}
 
+	LM_DBG("building rule for [%d:%.*s/%.*s/%.*s]\n", matchop,
+			match_exp.len, ZSW(match_exp.s), subst_exp.len, ZSW(subst_exp.s),
+			repl_exp.len, ZSW(repl_exp.s));
 	if (repl_comp && (cap_cnt < repl_comp->max_pmatch) && 
 			(repl_comp->max_pmatch != 0)) {
 		LM_ERR("repl_exp %.*s refers to %d sub-expressions, but "