Merge topic 'improve-cps-project-error'

f2b7184b98 cmPackageInfoArguments: Improve error message

Acked-by: Kitware Robot <kwrobot@kitware.com>
Tested-by: buildbot <buildbot@kitware.com>
Reviewed-by: Ben Boeckel <ben.boeckel@kitware.com>
Merge-request: !11363