Fix issue detected by Coverity Scan
Fix issue detected by Coverity Scan

CID: 1340285 (Division or modulo by zero)

Signed-off-by: Noah Metzger <9141aec52180a3854831e4f8e96243f25273abca@bib.uni-mannheim.de>

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