Add doc/arm/notes-9.11.28.xml to util/copyrights

Commit d602219a8d968632bab899f8a0360beffcf685df did not update
util/copyrights as it should have.  Add the missing line to prevent the
"misc" GitLab CI job from failing.

diff --git a/util/copyrights b/util/copyrights
index 0c04743ef9b3225e3df4aed6993d4cd0f89c5590..57f50cd9431f65414e63760858eaefeb12e69dd1 100644 (file)
--- a/util/copyrights
+++ b/util/copyrights
@@ -3262,6 +3262,7 @@
 ./doc/arm/notes-9.11.25.xml                    SGML    2020,2021
 ./doc/arm/notes-9.11.26.xml                    SGML    2020,2021
 ./doc/arm/notes-9.11.27.xml                    SGML    2020,2021
+./doc/arm/notes-9.11.28.xml                    SGML    2021
 ./doc/arm/notes-9.11.3.xml                     SGML    2019,2020,2021
 ./doc/arm/notes-9.11.4.xml                     SGML    2019,2020,2021
 ./doc/arm/notes-9.11.5.xml                     SGML    2019,2020,2021