diff --git a/lib/libc/gen/getosreldate.3 b/lib/libc/gen/getosreldate.3
index 683722d14c4c..78dc7e5f0b46 100644
--- a/lib/libc/gen/getosreldate.3
+++ b/lib/libc/gen/getosreldate.3
@@ -1,5 +1,5 @@
-.\" Copyright (c) 2002
-.\"	The Regents of the University of California.  All rights reserved.
+.\" Copyright (c) 2002 The FreeBSD Project.
+.\" All rights reserved.
 .\"
 .\" Redistribution and use in source and binary forms, with or without
 .\" modification, are permitted provided that the following conditions
@@ -9,18 +9,11 @@
 .\" 2. Redistributions in binary form must reproduce the above copyright
 .\"    notice, this list of conditions and the following disclaimer in the
 .\"    documentation and/or other materials provided with the distribution.
-.\" 3. All advertising materials mentioning features or use of this software
-.\"    must display the following acknowledgment:
-.\"	This product includes software developed by the University of
-.\"	California, Berkeley and its contributors.
-.\" 4. Neither the name of the University nor the names of its contributors
-.\"    may be used to endorse or promote products derived from this software
-.\"    without specific prior written permission.
 .\"
-.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
@@ -36,7 +29,8 @@
 .Os
 .Sh NAME
 .Nm getosreldate
-.Nd get the value of __FreeBSD_version
+.Nd get the value of
+.Dv __FreeBSD_version
 .Sh LIBRARY
 .Lb libc
 .Sh SYNOPSIS
@@ -45,21 +39,39 @@
 .Fn getosreldate void
 .Sh DESCRIPTION
 The
-.Fn getrelosdate
-function should return a 32-bit integer showing the version of
+.Fn getosreldate
+function returns an integer showing the version of the
+currently running
 .Fx
-that a program was compiled on, and maybe running on (if 2.0 or better).
-Definitions of the values can be found on the porters handbook
+kernel.
+Definitions of the values can be found in
+.%B "The Porter's Handbook"
 which is usually installed at
-.Pa /usr/share/doc/en_US.ISO8859-1/books/porters-handbook/
+.Pa /usr/share/doc/en_US.ISO8859-1/books/porters-handbook/ .
+.Sh RETURN VALUES
+Upon successful completion,
+.Fn getosreldate
+returns the value requested;
+otherwise the value \-1 is returned and the global variable
+.Va errno
+is set to indicate the error.
 .Sh EXAMPLES
 An example can be found in
 .Pa /usr/share/examples/FreeBSD_version .
+.Sh ERRORS
+The
+.Fn getosreldate
+function may fail and set
+.Va errno
+for any of the errors specified for the library function
+.Xr sysctl 3 .
 .Sh SEE ALSO
-The porter handbook:
-.Pa /usr/share/doc/en_US.ISO8859-1/books/porters-handbook/
+.Rs
+.%B "The Porter's Handbook"
+.%O /usr/share/doc/en_US.ISO8859-1/books/porters\-handbook/
+.Re
 .Sh HISTORY
 The
 .Fn getosreldate
-appeared in
+function appeared in
 .Fx 2.0 .