Use markup for errno
Also remove a .Pp before .Bl while there
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@ -1,4 +1,4 @@
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.\" $NetBSD: kqueue.2,v 1.35 2015/12/08 14:52:06 christos Exp $
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.\" $NetBSD: kqueue.2,v 1.36 2016/12/19 07:48:35 abhinav Exp $
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.\"
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.\" Copyright (c) 2000 Jonathan Lemon
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.\" All rights reserved.
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@ -299,7 +299,6 @@ Takes a descriptor as the identifier, and returns whenever
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there is data available to read.
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The behavior of the filter is slightly different depending
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on the descriptor type.
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.Pp
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.Bl -tag -width 2n
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.It Sockets
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Sockets which have previously been passed to
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@ -487,7 +486,9 @@ This filter automatically sets the EV_CLEAR flag internally.
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.Fn kqueue
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creates a new kernel event queue and returns a file descriptor.
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If there was an error creating the kernel event queue, a value of \-1 is
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returned and errno set.
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returned and
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.Dv errno
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is set.
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.Pp
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.Fn kevent
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returns the number of events placed in the
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