git: openjdk/jdk11u-dev: 8280373: Update Xalan serializer / SystemIDResolver to align with JDK-8270492

[Andrew John Hughes]

Changeset: aeeab3d9
Author:    Andrew John Hughes <andrew at openjdk.org>
Date:      2022-04-08 02:29:46 +0000
URL:       https://git.openjdk.java.net/jdk11u-dev/commit/aeeab3d965109ac9d5a0380cec999c392e7c2106

8280373: Update Xalan serializer / SystemIDResolver to align with JDK-8270492

Backport-of: c180070cb59b8e075376ae913c5db9a4ed868303

! src/java.xml/share/classes/com/sun/org/apache/xml/internal/serializer/utils/SystemIDResolver.java