Fix typo in patch uri.

Reported by:	Martin Simmons
Approved by:	so

website/static/security/advisories/FreeBSD-EN-21:02.extattr.asc

@@ -69,8 +69,8 @@ a) Download the relevant patch from the location below, and verify the
 detached PGP signature using your PGP utility.
 
 [FreeBSD 11.4]
-# fetch https://security.FreeBSD.org/patches/EN-12:02/extattr.patch
-# fetch https://security.FreeBSD.org/patches/EN-12:02/extattr.patch.asc
+# fetch https://security.FreeBSD.org/patches/EN-21:02/extattr.patch
+# fetch https://security.FreeBSD.org/patches/EN-21:02/extattr.patch.asc
 # gpg --verify extattr.patch.asc
 
 b) Apply the patch.  Execute the following commands as root:
@@ -111,19 +111,19 @@ The latest revision of this advisory is available at
 <URL:https://security.FreeBSD.org/advisories/FreeBSD-EN-21:02.extattr.asc>
 -----BEGIN PGP SIGNATURE-----
 
-iQKTBAEBCgB9FiEE/A6HiuWv54gCjWNV05eS9J6n5cIFAmATbiRfFIAAAAAALgAo
+iQKTBAEBCgB9FiEE/A6HiuWv54gCjWNV05eS9J6n5cIFAmAUV1dfFIAAAAAALgAo
 aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldEZD
 MEU4NzhBRTVBRkU3ODgwMjhENjM1NUQzOTc5MkY0OUVBN0U1QzIACgkQ05eS9J6n
-5cKxMBAAjpesCOTrkqvjjKZmez8ACSUdaa7IYMLbJpeXW+0IbFVU/IQdK5/aq6r1
-j/LytAbQ0yDlzfEggCeIWKGkbvaNs0eUVCx/1AOjWdxWePvrlpJ2GQNsHGZeWzBc
-QUv9LEao0MQF9UGjd0JV81nTE2DT4a2F3WVdfuX2QfkWntfWwpXf3Uf3Cvi6Cpfy
-rbZTkFeBmFvfgJu13co4re1gur8eYvMyNqcp+FO9OttEr/Fg5D/okQfp+0uZ1uIl
-80WNZLwgnJG07FBVgcjbbVr/JJJqzVQh3opUa4+6UZaaHoRszs4jE4Mc22C0G4Ma
-8vtBp4Z/Ndznv04TvTNiAyS3aAe0ums4yotZJBJEuVr1rA1lC6YgRVT9+qfsPcWT
-SuVM16NS4VGVpN5SruptLbrbTHQARDAAWDbtP1fB8ccvBIonf0hh5AOcKFBxHHY3
-NoKHLV373zTauvxqy7RKRAtnB2oB0uMT4j0lwJmn7CM1h+lL1GcVy1PTDVQ4mk+N
-2/I51AcbURjmWqxTTORI6p8CgLsiwPfdsup5T2g/JPu2nc9COWL/WKCytP2pXji3
-+Lu+SJldxUCx8JiiCSFma7ZG/sjB+B1vOajzULqBWUgTH6YpX8gV78amDHmzRq20
-2is7fa+63ImVHtCZAIeSs/PGU2v+MDQ6eBNqFTccbgVvINEmMNE=
-=XIov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+=2cLo
 -----END PGP SIGNATURE-----