git: 59a5099ec12d - stable/13 - Document kern.log_wakeups_per_second.

The branch stable/13 has been updated by jhb:

URL: https://cgit.FreeBSD.org/src/commit/?id=59a5099ec12d3e8032817587c28c972ed00abdae

commit 59a5099ec12d3e8032817587c28c972ed00abdae
Author:     John Baldwin <jhb@FreeBSD.org>
AuthorDate: 2021-08-04 18:50:34 +0000
Commit:     John Baldwin <jhb@FreeBSD.org>
CommitDate: 2021-10-19 23:53:26 +0000

    Document kern.log_wakeups_per_second.
    
    PR:             148680
    
    (cherry picked from commit c51e4962a3cf2959d1f1cb9ab74ceab448583169)
---
 sys/kern/subr_log.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sys/kern/subr_log.c b/sys/kern/subr_log.c
index 9336611d6005..e69fb49b008f 100644
--- a/sys/kern/subr_log.c
+++ b/sys/kern/subr_log.c
@@ -98,10 +98,10 @@ static struct cv	log_wakeup;
 struct mtx		msgbuf_lock;
 MTX_SYSINIT(msgbuf_lock, &msgbuf_lock, "msgbuf lock", MTX_DEF);
 
-/* Times per second to check for a pending syslog wakeup. */
 static int	log_wakeups_per_second = 5;
 SYSCTL_INT(_kern, OID_AUTO, log_wakeups_per_second, CTLFLAG_RW,
-    &log_wakeups_per_second, 0, "");
+    &log_wakeups_per_second, 0,
+    "How often (times per second) to check for /dev/log waiters.");
 
 /*ARGSUSED*/
 static	int