@Override
	public void close() throws IOException {
		if (fileReader != null) {
			fileReader.close();
		}
	}
Closes resources used by this {@link Msf}
@throws IOException under circumstances found when closing a {@link RandomAccessFile}
Ghidra/Features/PDB/src/main/java/ghidra/app/util/bin/format/pdb2/pdbreader/msf/AbstractMsf.java