These will appear in 2.2, not 3.0.

Pointed out by: wosch

share/examples/mdoc/example.1

@@ -33,7 +33,7 @@
 .\" Note: Only specify the operating system when the command
 .\" is FreeBSD specific, otherwise use the .Os macro with no
 .\" arguments.
-.Os FreeBSD 3.0
+.Os FreeBSD 2.2
 .Sh NAME
 .Nm example
 .Nd example command manual page
@@ -134,7 +134,7 @@ Self explanatory.
 The
 .Nm
 manual page example first appeared in
-.Fx 3.0 .
+.Fx 2.2 .
 .Pp
 Some other common
 .Sx HISTORY

share/examples/mdoc/example.3

@@ -33,7 +33,7 @@
 .\" Note: Only specify the operating system when the command
 .\" is FreeBSD specific, otherwise use the .Os macro with no
 .\" arguments.
-.Os FreeBSD 3.0
+.Os FreeBSD 2.2
 .Sh NAME
 .Nm example
 .Nd example library function manual page
@@ -296,7 +296,7 @@ Need authenticator.
 The
 .Nm
 manual page example first appeared in
-.Fx 3.0 .
+.Fx 2.2 .
 .Pp
 Some other common
 .Sx HISTORY

share/examples/mdoc/example.4

@@ -33,7 +33,7 @@
 .\" Note: Only specify the operating system when the command
 .\" is FreeBSD specific, otherwise use the .Os macro with no
 .\" arguments.
-.Os FreeBSD 3.0
+.Os FreeBSD 2.2
 .Sh NAME
 .Nm example
 .Nd example device driver manual page
@@ -79,7 +79,7 @@ Self explanatory.
 The
 .Nm
 manual page example first appeared in
-.Fx 3.0 .
+.Fx 2.2 .
 .Pp
 Some other common
 .Sx HISTORY