Merge topic 'cmCLI-string-cleanup'

af08f9dc55 cmComputeLinkInformation: use characters where possible
52ca45e485 cmComputeLinkInformation: combine string literals where possible
41da256b02 cmComputeLinkInformation: use `cmStrCat` where appropriate

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: buildbot <buildbot@kitware.com>
Acked-by: Alex Turbov <i.zaufi@gmail.com>
Merge-request: !8160