From fcc8734127b12049a00286b6ef5860341ce86859 Mon Sep 17 00:00:00 2001
From: Alexander Motin <mav@FreeBSD.org>
Date: Wed, 6 Mar 2019 15:19:04 +0000
Subject: [PATCH] Flush stdout after each iteration.

Without this, if output is redirected from the console, it is buffered for
too long, making tool quite unusable.

MFC after:	1 week
Sponsored by:	iXsystems, Inc.
---
 usr.bin/ctlstat/ctlstat.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/usr.bin/ctlstat/ctlstat.c b/usr.bin/ctlstat/ctlstat.c
index 34e340fadde..6586430172c 100644
--- a/usr.bin/ctlstat/ctlstat.c
+++ b/usr.bin/ctlstat/ctlstat.c
@@ -717,6 +717,7 @@ main(int argc, char **argv)
 		}
 
 		fprintf(stdout, "\n");
+		fflush(stdout);
 		ctx.flags &= ~CTLSTAT_FLAG_FIRST_RUN;
 		if (count != 1)
 			sleep(waittime);