11622 clean up rarer mandoc lint warnings

*** 10,28 ****
  .\"  http://www.illumos.org/license/CDDL.
  .TH EPOLL 5 "Apr 17, 2014"
  .SH NAME
  epoll \- Linux-compatible I/O event notification facility
  .SH SYNOPSIS
- 
- .LP
  .nf
  #include <sys/epoll.h>
  .fi
  
  .SH DESCRIPTION
- .LP
- 
  \fBepoll\fR is a facility for efficient event-oriented I/O that has a
  similar model to \fBpoll\fR(2), but does not necessitate rescanning a
  set of file descriptors to wait for an event.  \fBepoll\fR is of Linux
  origins, and this facility is designed to be binary-compatible with
  the Linux facility, including the following interfaces:
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*** 68,79 ****
  to waiting for events.
  .RE
  
  .sp
  .SH NOTES
- .LP
- 
  The \fBepoll\fR facility is implemented
  for purposes of offering compatibility to and portability of Linux-borne
  applications; native applications should continue to prefer using event ports
  via the \fBport_create\fR(3C),
  \fBport_associate\fR(3C) and \fBport_getn\fR(3C) interfaces.
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*** 100,110 ****
  these semantics; closing the \fBEPOLL_CTL_ADD\fR'd file descriptor
  will always result in no further
  events being generated for that event description.
  
  .SH SEE ALSO
- .LP
  \fBepoll_create\fR(3C), \fBepoll_create1\fR(3C), \fBepoll_ctl\fR(3C),
  \fBepoll_wait\fR(3C), \fBepoll_pwait\fR(3C),
  \fBport_create\fR(3C), \fBport_associate\fR(3C), \fBport_dissociate\fR(3C),
  \fBport_get\fR(3C),
  \fBpselect\fR(3C)
--- 94,103 ----