git: 6984b0bf8e - main - [phb]: Document make newentry SA_ID

The branch main has been updated by fernape:

URL: https://cgit.FreeBSD.org/doc/commit/?id=6984b0bf8ee29466f6787e8247c0162fe81764b1

commit 6984b0bf8ee29466f6787e8247c0162fe81764b1
Author:     Fernando Apesteguía <fernape@FreeBSD.org>
AuthorDate: 2023-09-26 13:45:07 +0000
Commit:     Fernando Apesteguía <fernape@FreeBSD.org>
CommitDate: 2023-09-26 13:45:07 +0000

    [phb]: Document make newentry SA_ID
    
    Document helper for registering FreeBSD Security Advisories.
---
 .../content/en/books/porters-handbook/security/_index.adoc    | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/documentation/content/en/books/porters-handbook/security/_index.adoc b/documentation/content/en/books/porters-handbook/security/_index.adoc
index d5fc9c9aec..7843b770d7 100644
--- a/documentation/content/en/books/porters-handbook/security/_index.adoc
+++ b/documentation/content/en/books/porters-handbook/security/_index.adoc
@@ -267,6 +267,17 @@ following command can be used instead:
 
 where `CVE-YYYYY-XXXX` is a valid CVE identifier.
 
+If the vulnerability is a FreeBSD Security Advisory, the
+following command can be used instead:
+
+[source,shell]
+....
+% cd ${PORTSDIR}/security/vuxml
+% make newentry SA_ID=FreeBSD-SA-YY-XXXXXX.asc
+....
+
+where `FreeBSD-SA-YY-XXXXXX.asc` is a published https://www.freebsd.org/security/advisories/[FreeBSD Security Advisory].
+
 Verify its syntax and formatting:
 
 [source,shell]