Fix CID 1395108 (Dereference after null check)
Fix CID 1395108 (Dereference after null check)

Let's hope that word->best_choice is never NULL.
Overwise both the old and the new code would abort with SIGSEGV.

Signed-off-by: Stefan Weil <8d4c780fcfdc41841e5070f4c43da8958ba6aec0@weilnetz.de>

jbarlow83/tesseract,amitdo/tesseract,stweil/tesseract,UB-Mannheim/tesseract,stweil/tesseract,jbarlow83/tesseract,UB-Mannheim/tesseract,amitdo/tesseract,tesseract-ocr/tesseract,stweil/tesseract,tesseract-ocr/tesseract,UB-Mannheim/tesseract,jbarlow83/tesseract,amitdo/tesseract,UB-Mannheim/tesseract,amitdo/tesseract,stweil/tesseract,stweil/tesseract,amitdo/tesseract,tesseract-ocr/tesseract,tesseract-ocr/tesseract,tesseract-ocr/tesseract,UB-Mannheim/tesseract,jbarlow83/tesseract,jbarlow83/tesseract