-.\" $OpenBSD: fork1.9,v 1.31 2022/12/29 06:10:54 guenther Exp $
+.\" $OpenBSD: fork1.9,v 1.32 2022/12/29 06:49:34 jmc Exp $
.\" $NetBSD: fork1.9,v 1.3 1999/03/16 00:40:47 garbled Exp $
.\"
.\" Copyright (c) 1998 The NetBSD Foundation, Inc.
ptrace(PT_TRACE_ME, 0, 0, 0) had been invoked in the child.
.El
.Pp
-the new thread will begin execution by calling
+The new thread will begin execution by calling
.Fa func ,
which must not be
.Dv NULL .