gossipd: code to invoke compactd and reopen store.

This isn't called anywhere yet.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

lightningd/gossip_control.c

@@ -319,9 +319,10 @@ void gossip_init(struct lightningd *ld, int connectd_fd)
 	    chainparams,
 	    ld->our_features,
 	    &ld->our_nodeid,
+	    ld->autoconnect_seeker_peers,
+	    subdaemon_path(tmpctx, ld, "lightning_gossip_compactd"),
 	    ld->dev_fast_gossip,
-	    ld->dev_fast_gossip_prune,
-	    ld->autoconnect_seeker_peers);
+	    ld->dev_fast_gossip_prune);
 
 	subd_req(ld->gossip, ld->gossip, take(msg), -1, 0,
 		 gossipd_init_done, NULL);

lightningd/lightningd.c

@@ -381,9 +381,10 @@ static const char *subdaemons[] = {
 	"lightning_closingd",
 	"lightning_connectd",
 	"lightning_gossipd",
+	"lightning_gossip_compactd",
 	"lightning_hsmd",
 	"lightning_onchaind",
-	"lightning_openingd"
+	"lightning_openingd",
 };
 
 /* Return true if called with a recognized subdaemon e.g. "hsmd" */