certctl.8: Correct the HISTORY section.

certctl was merged to stable/12 after 12.1 was branched.

PR:		246190
Reported by:	Michael Osipov <michael.osipov@siemens.com>
MFC after:	3 days

usr.sbin/certctl/certctl.8

@@ -26,7 +26,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd May 22, 2020
+.Dd May 30, 2020
 .Dt CERTCTL 8
 .Os
 .Sh NAME
@@ -123,6 +123,6 @@ Default: *.pem *.crt *.cer *.crl *.0
 .Sh HISTORY
 .Nm
 first appeared in
-.Fx 12.0
+.Fx 12.2
 .Sh AUTHORS
 .An Allan Jude Aq Mt allanjude@freebsd.org