The intention was to only conditionally warn. Thanks Noel for spotting
my mistake.

Change-Id: Iaa035dba1f834c13a179ef66c3f39777f3843bdb
Reviewed-on: https://gerrit.libreoffice.org/62641Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>
Tested-by: Jenkins