Update HISTORY fixing some facts, while it is not clear if the

environment stuff originates from AT&T or BSD. ok ok deraadt@
millert@ ian@

src/lib/libc/stdlib/getenv.3

@@ -29,7 +29,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"	$OpenBSD: getenv.3,v 1.9 2004/01/23 23:08:46 jmc Exp $
+.\"	$OpenBSD: getenv.3,v 1.10 2005/05/11 20:09:44 otto Exp $
 .\"
 .Dd December 11, 1993
 .Dt GETENV 3
@@ -130,12 +130,18 @@ The
 function conforms to
 .St -ansiC .
 .Sh HISTORY
+The function
+.Fn getenv
+appeared in
+.At v7
+and
+.Bx 3 .
 The functions
 .Fn setenv
 and
 .Fn unsetenv
 appeared in
-.At v7 .
+.Bx 4.3 Tahoe .
 The
 .Fn putenv
 function appeared in