fix typo and minor usage issue
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@ -1,4 +1,4 @@
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.\" $NetBSD: vfork.2,v 1.24 2003/08/07 16:44:11 agc Exp $
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.\" $NetBSD: vfork.2,v 1.25 2014/07/18 15:56:44 dholland Exp $
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.\"
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.\" Copyright (c) 1980, 1991, 1993
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.\" The Regents of the University of California. All rights reserved.
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@ -73,12 +73,12 @@ The
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.Nm
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system call can normally be used just like
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.Xr fork 2 .
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It does not work, however, to return while running in the childs context
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It does not work, however, to return while running in the child's context
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from the procedure that called
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.Fn vfork
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since the eventual return from
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.Fn vfork
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would then return to a no longer existent stack frame.
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would then return to a no longer existing stack frame.
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Be careful, also, to call
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.Xr _exit 2
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rather than
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