void setIndexCount(int newIndexCount) {
		setModified();
		for (int index = indexCnt; index < newIndexCount; index++) {
			removeBuffer(index);
		}
		indexCnt = newIndexCount;
	}
Set the current index count for the file
@param newIndexCount the count
Ghidra/Framework/DB/src/main/java/db/buffers/RecoveryFile.java