11622 clean up rarer mandoc lint warnings

@@ -6,18 +6,15 @@
 .\" 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]
 .TH PRNIO 7I "Jan 2, 2002"
 .SH NAME
 prnio \- generic printer interface
 .SH SYNOPSIS
-.LP
 .nf
 \fB#include <sys/prnio.h>\fR
 .fi
 
 .SH DESCRIPTION
-.sp
-.LP
 The \fBprnio\fR generic printer interface defines ioctl commands and data
 structures for printer device drivers.
 .sp
 .LP
 \fBprnio\fR defines and provides facilities for five basic phases of the

@@ -82,11 +79,10 @@
 .LP
 The Abort phase is accomplished by interrupting the \fBwrite\fR(2) and
 \fBread\fR(2) system calls. The application can perform some additional cleanup
 during the Abort phase as described in \fBPRNIOC_GET_IFCAP\fR section.
 .SH IOCTLS
-.sp
 .ne 2
 .na
 \fB\fBPRNIOC_GET_IFCAP\fR\fR
 .ad
 .RS 21n

@@ -269,11 +265,10 @@
 This command can be used by applications to retrieve current device status. The
 argument is a pointer to \fBuint_t\fR, where the status word is returned.
 Status is a combination of the following bits:
 .RE
 
-.br
 .in +2
 \fBPRN_ONLINE\fR - For devices that support \fBPRN_HOTPLUG\fR capability,
 this bit is set when the device is online, otherwise the device is offline.
 Devices without \fBPRN_HOTPLUG\fR support should always have this bit set.
 .in -2

@@ -345,12 +340,10 @@
 \fBPRNIOC_GET_TIMEOUTS\fR for description of  this structure. This  command is
 only valid for drivers that support \fBPRN_TIMEOUTS\fR capability.
 .RE
 
 .SH ATTRIBUTES
-.sp
-.LP
 See \fBattributes\fR(5) for descriptions of the following attributes:
 .sp
 
 .sp
 .TS

@@ -363,12 +356,10 @@
 _
 Interface Stability     Evolving
 .TE
 
 .SH SEE ALSO
-.sp
-.LP
 \fBclose\fR(2), \fBioctl\fR(2), \fBread\fR(2), \fBwrite\fR(2),
 \fBattributes\fR(5), \fBecpp\fR(7D), \fBusbprn\fR(7D), \fBlp\fR(7D)
 .sp
 .LP
 \fIIEEE Std 1284-1994\fR