12315 errors in section 7i of the manual

@@ -12,11 +12,11 @@
 .\" When distributing Covered Code, include this CDDL HEADER in each
 .\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 .\" If applicable, add the following below this CDDL HEADER, with the
 .\" fields enclosed by brackets "[]" replaced with your own identifying
 .\" information: Portions Copyright [yyyy] [name of copyright owner]
-.Dd February 1, 2019
+.Dd February 17, 2020
 .Dt MIXER 7I
 .Os
 .Sh NAME
 .Nm mixer
 .Nd generic mixer device interface

@@ -436,14 +436,14 @@
 .El
 .Ss "Mixer Extension IOCTLs"
 The pseudo
 .Pa /dev/mixer
 device supports ioctls that can change the
-oarious settings for the audio hardware in the system.
+various settings for the audio hardware in the system.
 .Pp
 Those ioctls should only be used by dedicated mixer applications or desktop
-olumme controls, and not by typical ordinary audio applications such as media
+volume controls, and not by typical ordinary audio applications such as media
 players.
 Ordinary applications that wish to adjust their own volume settings
 should use the
 .Dv SNDCTL_DSP_SETPLAYVOL
 or