common: allow subdaemons to specify the node_id in status messages.

This is ignored in subdaemons which are per-peer, but very useful for
multi-peer daemons like connectd and gossipd.

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

devtools/mkcommit.c

@@ -28,7 +28,9 @@
 
 static bool verbose = false;
 
-void status_fmt(enum log_level level, const char *fmt, ...)
+void status_fmt(enum log_level level,
+		const struct node_id *node_id,
+		const char *fmt, ...)
 {
 	if (verbose) {
 		va_list ap;