===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/tmux/window.c,v
retrieving revision 1.208
retrieving revision 1.209
diff -u -r1.208 -r1.209
--- src/usr.bin/tmux/window.c	2018/03/16 15:15:39	1.208
+++ src/usr.bin/tmux/window.c	2018/05/24 09:34:54	1.209
@@ -1,4 +1,4 @@
-/* $OpenBSD: window.c,v 1.208 2018/03/16 15:15:39 nicm Exp $ */
+/* $OpenBSD: window.c,v 1.209 2018/05/24 09:34:54 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -917,10 +917,11 @@
 	wp->flags &= ~(PANE_STATUSREADY|PANE_STATUSDRAWN);
 
 	cmd = cmd_stringify_argv(wp->argc, wp->argv);
-	log_debug("spawn: %s -- %s", wp->shell, cmd);
+	log_debug("%s: shell=%s", __func__, wp->shell);
+	log_debug("%s: command=%s", __func__, cmd);
 	for (i = 0; i < wp->argc; i++)
-		log_debug("spawn: argv[%d] = %s", i, wp->argv[i]);
-	environ_log(env, "spawn: ");
+		log_debug("%s: argv[%d]=%s", __func__, i, wp->argv[i]);
+	environ_log(env, "%s: environment ", __func__);
 
 	memset(&ws, 0, sizeof ws);
 	ws.ws_col = screen_size_x(&wp->base);
@@ -998,6 +999,8 @@
 		execl(wp->shell, argv0, (char *)NULL);
 		fatal("execl failed");
 	}
+	log_debug("%s: master=%s", __func__, ttyname(wp->fd));
+	log_debug("%s: slave=%s", __func__, wp->tty);
 
 	sigprocmask(SIG_SETMASK, &oldset, NULL);
 	setblocking(wp->fd, 0);