default void checkReadable(EmuUnixUser user) {
		if (!isReadable(user)) {
			throw new EmuIOException("The file " + getPathname() + " cannot be read.");
		}
	}
Require the user to have read permission on this file, throwing {@link EmuIOException} if not

@param user the user
Ghidra/Features/SystemEmulation/src/main/java/ghidra/pcode/emu/unix/EmuUnixFile.java