Resolve "run xmllint on *.xml and *.docbook in precheck"

(cherry picked from commit bb1937aa)
7 jobs for 378-run-xmllint-on-xml-and-docbook-in-precheck-v9_11 in 6 minutes and 54 seconds (queued for 5 seconds)
Status Job ID Name Coverage
  Precheck
passed precheck:debian:sid:amd64 #23288
amd64 docker linux

00:00:11

 
  Build
passed build:debian:sid:amd64 #23289
amd64 docker linux

00:01:55

passed build:debian:sid:i386 #23290
i386 docker linux

00:01:52

 
  Test
passed systemtest:debian:sid:amd64 #23293
amd64 docker linux

00:04:33

passed systemtest:debian:sid:i386 #23294
i386 docker linux

00:04:07

passed unittest:debian:sid:amd64 #23291
amd64 docker linux

00:01:07

passed unittest:debian:sid:i386 #23292
i386 docker linux

00:00:58