11622 clean up rarer mandoc lint warnings

@@ -10,20 +10,17 @@
 .\"  http://www.illumos.org/license/CDDL.
 .TH EPOLL_CTL 3C "April 9, 2016"
 .SH NAME
 epoll_ctl \- control an epoll instance
 .SH SYNOPSIS
-
-.LP
 .nf
 #include <sys/epoll.h>
 
 \fBint\fR \fBepoll_ctl\fR(\fBint\fR \fIepfd\fR, \fBint\fR \fIop\fR, \fBint\fR \fIfd\fR, \fBstruct epoll_event *\fR\fIevent\fR);
 .fi
 
 .SH DESCRIPTION
-.LP
 The \fBepoll_ctl()\fR function executes the operation specified by
 \fIop\fR (as parameterized by \fIevent\fR) on the \fIepfd\fR epoll instance.
 Valid values for \fIop\fR:
 
 .sp

@@ -242,17 +239,15 @@
 potential failure modes for user-level software and should be used
 with caution.
 .RE
 
 .SH RETURN VALUES
-.LP
 Upon successful completion, \fBepoll_ctl()\fR returns 0.
 If an error occurs, -1 is returned and errno is set to indicate
 the error.
 
 .SH ERRORS
-.LP
 \fBepoll_ctl()\fR will fail if:
 .sp
 .ne 2
 .na
 \fB\fBEBADF\fR\fR

@@ -292,18 +287,15 @@
 specified \fBepoll\fR(5) instance.
 .RE
 
 .sp
 .SH NOTES
-.LP
-
 The \fBepoll\fR(5) facility is implemented for purposes of offering
 compatibility for Linux-borne applications; native
 applications should continue to prefer using event ports via the
 \fBport_create\fR(3C), \fBport_associate\fR(3C) and \fBport_get\fR(3C)
 interfaces.  See \fBepoll\fR(5) for compatibility details and restrictions.
 
 .SH SEE ALSO
-.LP
 \fBepoll_create\fR(3C), \fBepoll_wait\fR(3C),
 \fBport_create\fR(3C), \fBport_associate\fR(3C), \fBport_get\fR(3C),
 \fBepoll\fR(5)