fdo#80363 backport of the fix for Cyrillic spell. dictionary path

(cherry picked from commit e77a9785ca76d7350bbcbe8a107a80f89bc72831)

Change-Id: I1b9c016e8d04f1cf14dad2a421c7eeb513a7b2ff
Reviewed-on: https://gerrit.libreoffice.org/10472
Reviewed-by: Michael Stahl <mstahl@redhat.com>
Reviewed-by: Björn Michaelsen <bjoern.michaelsen@canonical.com>
Reviewed-by: David Tardon <dtardon@redhat.com>
Tested-by: David Tardon <dtardon@redhat.com>