[src/trunk]: src/share/man/man9 Fix some typos, remove unnecessary Pp

[wiz <wiz%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/6bef69e27081
branches:  trunk
changeset: 1008349:6bef69e27081
user:      wiz <wiz%NetBSD.org@localhost>
date:      Fri Mar 20 08:02:55 2020 +0000

description:
Fix some typos, remove unnecessary Pp

diffstat:

 share/man/man9/usbnet.9 |  7 +++----
 1 files changed, 3 insertions(+), 4 deletions(-)

diffs (29 lines):

diff -r 7592578beee6 -r 6bef69e27081 share/man/man9/usbnet.9
--- a/share/man/man9/usbnet.9   Fri Mar 20 07:44:10 2020 +0000
+++ b/share/man/man9/usbnet.9   Fri Mar 20 08:02:55 2020 +0000
@@ -1,4 +1,4 @@
-.\"    $NetBSD: usbnet.9,v 1.10 2020/03/20 01:15:05 thorpej Exp $
+.\"    $NetBSD: usbnet.9,v 1.11 2020/03/20 08:02:55 wiz Exp $
 .\"
 .\" Copyright (c) 2019 Matthew R. Green
 .\" All rights reserved.
@@ -279,9 +279,8 @@
 pending detach.)
 .El
 .Pp
-Refrence counting functions for
+Reference counting functions for
 .Fa struct usbnet :
-.Pp
 .Bl -tag -width 4n
 .It Fn usbnet_busy un
 Increases the reference count on the driver instance, preventing
@@ -289,7 +288,7 @@
 device.
 Must be called with the core lock held.
 .It Fn usbnet_unbusy un
-Decreses the reference count on the driver instance.
+Decreases the reference count on the driver instance.
 Once the final reference has been dropped, if a detach event
 is pending, it is allowed to proceed.
 Must be called with the core lock held.