docs: Fix snapshot name in SET TRANSACTION docs.

MasaoFujii · MasaoFujii · commit 2f636daac85b · 2022-09-22T12:54:26.000+09:00
Commit 6c2003f changed the snapshot names mentioned in SET TRANSACTION docs, however, there was one place that the commit missed updating the name. Back-patch to all supported versions. Author: Japin Li Reviewed-by: Fujii Masao Discussion: https://postgr.es/m/MEYP282MB1669BD4280044501165F8B07B64F9@MEYP282MB1669.AUSP282.PROD.OUTLOOK.COM
diff --git a/doc/src/sgml/ref/set_transaction.sgml b/doc/src/sgml/ref/set_transaction.sgml
@@ -164,7 +164,7 @@ SET SESSION CHARACTERISTICS AS TRANSACTION <replaceable class="parameter">transa
    snapshot identifier, which must be given to <literal>SET TRANSACTION
    SNAPSHOT</literal> to specify which snapshot is to be imported.  The
    identifier must be written as a string literal in this command, for example
-   <literal>'000003A1-1'</literal>.
+   <literal>'00000003-0000001B-1'</literal>.
    <literal>SET TRANSACTION SNAPSHOT</literal> can only be executed at the
    start of a transaction, before the first query or
    data-modification statement (<command>SELECT</command>,
