Move the reopening of listen sockets down to after handling the child exit.

This makes sure that any panic message from the child is handled and shown
before continuing (or possibly failing).

bin/varnishd/mgt/mgt_child.c

@@ -492,17 +492,6 @@ mgt_reap_child(void)
 		fprintf(stderr, "WAIT 0x%jd\n", (intmax_t)r);
 	assert(r == child_pid);
 
-	/*
-	 * XXX exit mgr if we fail even with retries?
-	 * number of retries? interval?
-	 */
-	for (i = 0; i < 3; i++) {
-		if (MAC_reopen_sockets() == 0)
-			break;
-		/* error already logged */
-		(void)sleep(1);
-	}
-
 	VSB_printf(vsb, "Child (%jd) %s", (intmax_t)r,
 	    status ? "died" : "ended");
 	if (WIFEXITED(status) && WEXITSTATUS(status)) {
@@ -549,6 +538,17 @@ mgt_reap_child(void)
 
 	MGT_Complain(C_DEBUG, "Child cleanup complete");
 
+	/*
+	 * XXX exit mgr if we fail even with retries?
+	 * number of retries? interval?
+	 */
+	for (i = 0; i < 3; i++) {
+		if (MAC_reopen_sockets() == 0)
+			break;
+		/* error already logged */
+		(void)sleep(1);
+	}
+
 	if (child_state == CH_DIED && mgt_param.auto_restart)
 		mgt_launch_child(NULL);
 	else if (child_state == CH_DIED)