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

(LibreOffice 4.2.5 has problem only with the spelling dictionary path,
this bug doesn't affect hyphenation dictionaries and thesauri here).

Change-Id: I85f423a647f0f1765440287fbe4e9add9d740d83
Reviewed-on: https://gerrit.libreoffice.org/10471
Reviewed-by: Andras Timar <andras.timar@collabora.com>
Tested-by: Andras Timar <andras.timar@collabora.com>