-.Ar count
-parameter when the operation is successful.
-The possible operations are:
-.Bl -tag -width Fl
-.It Ic 0
-Issue a MTCACHE command (switch cache on).
-.It Ic 1
-Issue a MTNOCACHE command (switch cache off).
-.It Ic 2
-Issue a MTRETEN command (retension the tape).
-.It Ic 3
-Issue a MTERASE command (erase the entire tape).
-.It Ic 4
-Issue a MTEOM command (position to end of media).
-.It Ic 5
-Issue a MTNBSF command (backward space count files to BOF).
-.El
-.ne 1i
-.Sm off
-.It Sy S
-.Sm on
-Return the status of the open device, as
-obtained with a
-.Dv MTIOCGET
-.Xr ioctl
-call. If the operation was successful,
-an ``ack'' is sent with the size of the
-status buffer, then the status buffer is
-sent (in binary, which is non-portable between different platforms).
-.Sm off
-.It Xo Sy s Ar sub-command
-.Xc
-.Sm on
-This is a replacement for the previous S command, portable across different
-platforms. If the open device is a magnetic tape, return members of the
-magnetic tape status structure, as obtained with a
-.Dv MTIOCGET
-ioctl call. If the open device is not a magnetic tape, an error is returned.
-If the
-.Dv MTIOCGET
+.I count
+parameter when the operation is successful. The possible operations are:
+.RS
+.TP
+.B 0
+Issue a
+.B MTCACHE
+command (switch cache on).
+.TP
+.B 1
+Issue a
+.B MTNOCACHE
+command (switch cache off).
+.TP
+.B 2
+Issue a
+.B MTRETEN
+command (retension the tape).
+.TP
+.B 3
+Issue a
+.B MTERASE
+command (erase the entire tape).
+.TP
+.B 4
+Issue a
+.B MTEOM
+command (position to end of media).
+.TP
+.B 5
+Issue a
+.B MTNBSF
+command (backward space count files to BOF).
+.RE
+.TP
+.B S
+Return the status of the open device, as obtained with a
+.B MTIOCGET
+.B ioctl
+call. If the operation was successful, an \*(lqack\*(rq is sent with the size
+of the status buffer, then the status buffer is sent (in binary, which is
+non-portable between different platforms).
+.TP
+.BI s sub-command
+This is a replacement for the previous
+.B S
+command, portable across different platforms. If the open device is a magnetic
+tape, return members of the magnetic tape status structure, as obtained with a
+.B MTIOCGET
+ioctl call. If the open device is not a magnetic tape, an error is returned. If
+the
+.B MTIOCGET