5 files changed, 19 insertions, 20 deletions
diff --git a/lib/libc/sys/madvise.2 b/lib/libc/sys/madvise.2
index b253ecbe3f9..dbfd418b701 100644
--- a/lib/libc/sys/madvise.2
+++ b/lib/libc/sys/madvise.2
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: madvise.2,v 1.20 2019/01/11 18:46:30 deraadt Exp $
+.\"	$OpenBSD: madvise.2,v 1.21 2019/12/21 05:23:38 jsg Exp $
 .\"	$NetBSD: madvise.2,v 1.7 1995/12/27 21:17:02 jtc Exp $
 .\"
 .\" Copyright (c) 1991, 1993
@@ -30,7 +30,7 @@
 .\"
 .\"	@(#)madvise.2	8.1 (Berkeley) 6/9/93
 .\"
-.Dd $Mdocdate: January 11 2019 $
+.Dd $Mdocdate: December 21 2019 $
 .Dt MADVISE 2
 .Os
 .Sh NAME
@@ -101,8 +101,8 @@ system call conforms to
 .Sh HISTORY
 The
 .Fn madvise
-function first appeared in
-.Bx 4.4 .
+function has been available since
+.Ox 2.7 .
 The
 .Fn posix_madvise
 function first appeared in
diff --git a/lib/libc/sys/mmap.2 b/lib/libc/sys/mmap.2
index d920c6c0202..cdd744c0a0e 100644
--- a/lib/libc/sys/mmap.2
+++ b/lib/libc/sys/mmap.2
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: mmap.2,v 1.64 2019/12/10 00:39:52 jsg Exp $
+.\"	$OpenBSD: mmap.2,v 1.65 2019/12/21 05:23:38 jsg Exp $
 .\"	$NetBSD: mmap.2,v 1.5 1995/06/24 10:48:59 cgd Exp $
 .\"
 .\" Copyright (c) 1991, 1993
@@ -30,7 +30,7 @@
 .\"
 .\"	@(#)mmap.2	8.1 (Berkeley) 6/4/93
 .\"
-.Dd $Mdocdate: December 10 2019 $
+.Dd $Mdocdate: December 21 2019 $
 .Dt MMAP 2
 .Os
 .Sh NAME
@@ -318,7 +318,7 @@ A fully functional
 .Fn mmap
 system call first appeared in SunOS 4.0
 and has been available since
-.Bx 4.4 .
+.Bx 4.3 Net/2 .
 .Sh CAVEATS
 .St -p1003.1-2008
 specifies that references to pages beyond the end of a mapped object
diff --git a/lib/libc/sys/mprotect.2 b/lib/libc/sys/mprotect.2
index 8c4c10a4a1a..3a1ced1a109 100644
--- a/lib/libc/sys/mprotect.2
+++ b/lib/libc/sys/mprotect.2
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: mprotect.2,v 1.24 2019/01/11 18:46:30 deraadt Exp $
+.\"	$OpenBSD: mprotect.2,v 1.25 2019/12/21 05:23:38 jsg Exp $
 .\"	$NetBSD: mprotect.2,v 1.6 1995/10/12 15:41:08 jtc Exp $
 .\"
 .\" Copyright (c) 1991, 1993
@@ -30,7 +30,7 @@
 .\"
 .\"	@(#)mprotect.2	8.1 (Berkeley) 6/9/93
 .\"
-.Dd $Mdocdate: January 11 2019 $
+.Dd $Mdocdate: December 21 2019 $
 .Dt MPROTECT 2
 .Os
 .Sh NAME
@@ -124,8 +124,8 @@ function conforms to
 .Sh HISTORY
 The
 .Fn mprotect
-function first appeared in
-.Bx 4.4 .
+function has been available since
+.Bx 4.3 Net/2 .
 .Sh CAVEATS
 The
 .Ox
diff --git a/lib/libc/sys/msync.2 b/lib/libc/sys/msync.2
index 9eab83e2191..4da779f1898 100644
--- a/lib/libc/sys/msync.2
+++ b/lib/libc/sys/msync.2
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: msync.2,v 1.27 2019/12/10 00:49:26 jsg Exp $
+.\"	$OpenBSD: msync.2,v 1.28 2019/12/21 05:23:38 jsg Exp $
 .\"	$NetBSD: msync.2,v 1.8 1995/10/12 15:41:09 jtc Exp $
 .\"
 .\" Copyright (c) 1991, 1993
@@ -30,7 +30,7 @@
 .\"
 .\"	@(#)msync.2	8.1 (Berkeley) 6/9/93
 .\"
-.Dd $Mdocdate: December 10 2019 $
+.Dd $Mdocdate: December 21 2019 $
 .Dt MSYNC 2
 .Os
 .Sh NAME
@@ -103,9 +103,8 @@ An I/O error occurred while writing.
 .Sh HISTORY
 The
 .Fn msync
-function first appeared in SunOS 4.0
-and has been available since
-.Bx 4.4 .
+function has been available since
+.Bx 4.3 Net/2 .
 It was modified to conform to
 .St -p1003.1b-93
 .Sh BUGS
diff --git a/lib/libc/sys/munmap.2 b/lib/libc/sys/munmap.2
index e60e43fef83..cc6cf4d1c39 100644
--- a/lib/libc/sys/munmap.2
+++ b/lib/libc/sys/munmap.2
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: munmap.2,v 1.18 2019/01/11 18:46:30 deraadt Exp $
+.\"	$OpenBSD: munmap.2,v 1.19 2019/12/21 05:23:38 jsg Exp $
 .\"	$NetBSD: munmap.2,v 1.5 1995/02/27 12:35:03 cgd Exp $
 .\"
 .\" Copyright (c) 1991, 1993
@@ -30,7 +30,7 @@
 .\"
 .\"	@(#)munmap.2	8.2 (Berkeley) 4/15/94
 .\"
-.Dd $Mdocdate: January 11 2019 $
+.Dd $Mdocdate: December 21 2019 $
 .Dt MUNMAP 2
 .Os
 .Sh NAME
@@ -81,8 +81,8 @@ function conforms to
 .Sh HISTORY
 The
 .Fn munmap
-system call first appeared in
-.Bx 4.1c .
+system call has been available since
+.Bx 4.3 Net/2 .
 .Sh CAVEATS
 .St -p1003.1-2008
 specifies that