correct gen_dot

codegen/Makefile

@@ -44,5 +44,5 @@ svg: $(patsubst %.dot,%.svg,$(wildcard *.dot))
 	$(YML2_PROC) -y gen_dot.ysl2 $< -o $@
 
 %.svg: %.dot
-	dot -Tsvg -o $@ $<
+	dot -Tsvg $< -o $@ > /dev/null
 

codegen/gen_dot.ysl2

@@ -4,7 +4,7 @@
 include yslt.yml2
 
 tstylesheet {
-    template "protocol/fsm[count(state)>0]" document "{@name}.dot", "text"
+    template "/protocol/fsm[count(state)>0]"
     ||
     digraph finite_state_machine {
         rankdir=LR;