Fix PDF syntax error: "XObject" instead of "/XObject" when textonly_pdf=false
Fix PDF syntax error: "XObject" instead of "/XObject" when textonly_pdf=false

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