Document that flock can return ENOLCK
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@ -28,7 +28,7 @@
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.\" @(#)flock.2 8.2 (Berkeley) 12/11/93
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.\" $FreeBSD$
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.\"
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.Dd January 22, 2008
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.Dd November 9, 2011
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.Dt FLOCK 2
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.Os
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.Sh NAME
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@ -154,6 +154,8 @@ refers to an object other than a file.
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The argument
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.Fa fd
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refers to an object that does not support file locking.
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.It Bq Er ENOLCK
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A lock was requested, but no locks are available.
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.El
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.Sh SEE ALSO
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.Xr close 2 ,
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