12315 errors in section 7i of the manual

*** 12,22 ****
  .\" 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
  .Dt MIXER 7I
  .Os
  .Sh NAME
  .Nm mixer
  .Nd generic mixer device interface
--- 12,22 ----
  .\" 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 17, 2020
  .Dt MIXER 7I
  .Os
  .Sh NAME
  .Nm mixer
  .Nd generic mixer device interface
*** 436,449 ****
  .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.
  .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
  players.
  Ordinary applications that wish to adjust their own volume settings
  should use the
  .Dv SNDCTL_DSP_SETPLAYVOL
  or
--- 436,449 ----
  .El
  .Ss "Mixer Extension IOCTLs"
  The pseudo
  .Pa /dev/mixer
  device supports ioctls that can change the
! various settings for the audio hardware in the system.
  .Pp
  Those ioctls should only be used by dedicated mixer applications or desktop
! 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