11622 clean up rarer mandoc lint warnings

*** 10,21 ****
  .\"  http://www.illumos.org/license/CDDL.
  .TH EPOLL_WAIT 3C "Apr 17, 2014"
  .SH NAME
  epoll_wait, epoll_pwait \- wait for epoll events
  .SH SYNOPSIS
- 
- .LP
  .nf
  #include <sys/epoll.h>
  
  \fBint\fR \fBepoll_wait\fR(\fBint\fR \fIepfd\fR, \fBstruct epoll_event *\fR\fIevents\fR, 
       \fBint\fR \fImaxevents\fR, \fBint\fR \fItimeout\fR);
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       \fBint\fR \fImaxevents\fR, \fBint\fR \fItimeout\fR,
       \fBconst sigset_t *\fR\fIsigmask\fR);
  .fi
  
  .SH DESCRIPTION
- .LP
  The \fBepoll_wait()\fR function waits for events on the \fBepoll\fR(5)
  instance specified by \fIepfd\fR.  The \fIevents\fR parameter must point to
  an array of \fImaxevents\fR \fIepoll_event\fR structures to be
  filled in with pending events.  The \fItimeout\fR argument specifies the
  number of milliseconds to wait for an event if none is pending.  A
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  setting the signal mask, calling \fBepoll_wait()\fR, and restoring the
  signal mask upon return, and is therefore similar to the relationship
  between \fBselect\fR(3C) and \fBpselect\fR(3C).
  
  .SH RETURN VALUES
- .LP
  Upon successful completion, \fBepoll_wait()\fR and \fBepoll_pwait()\fR return
  the number of events, or 0 if none was pending and \fItimeout\fR milliseconds
  elapsed.  If an error occurs, -1 is returned and errno is set to indicate
  the error.
  
  .SH ERRORS
- .LP
  The \fBepoll_wait()\fR and \fBepoll_pwait()\fR functions will fail if:
  .sp
  .ne 2
  .na
  \fB\fBEBADF\fR\fR
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  is not greater than zero.
  .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_ctl\fR(3C),
  \fBport_create\fR(3C), \fBport_associate\fR(3C), \fBport_get\fR(3C),
  \fBpselect\fR(3C), \fBepoll\fR(5)
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