Merge topic 'fix-installscripts-gen'

183d25f1b8 Merge branch 'backport-fix-installscripts-gen' into fix-installscripts-gen
ca5e6dadb5 install: Generate InstallScripts.json in consistent location
98a34a06e6 install: Generate InstallScripts.json in consistent location

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: buildbot <buildbot@kitware.com>
Merge-request: !10168