When message-type is drvupgrade, MSG_DEBUG should be replaced with MSG_PRINTER_DRVUPGRADE.
Created attachment 8955 [details] v4-0-test patch
Created attachment 8956 [details] v3-6-test patch
Comment on attachment 8955 [details] v4-0-test patch LGTM
Comment on attachment 8956 [details] v3-6-test patch LGTM
Re-assigning to Karolin for inclusion in 4.0.next and 3.6.next. Jeremy.
Pushed to v3-6-test and autobuild-v4-0-test.
Pushed to v4-0-test. Closing out bug report. Thanks!