[PATCH] 2.4 drivers_char_random.c fix sample shellscripts

This fixes the sample shellscripts given in the comments of
drivers/char/random.c.

The scripts save and restore random seeds for /dev/random across
reboots.

drivers/char/random.c

@@ -175,7 +175,7 @@
  *	chmod 600 $random_seed
  *	poolfile=/proc/sys/kernel/random/poolsize
  *	[ -r $poolfile ] && bytes=`cat $poolfile` || bytes=512
- *	dd if=/dev/urandom of=$random_seed count=1 bs=bytes
+ *	dd if=/dev/urandom of=$random_seed count=1 bs=$bytes
  *
  * and the following lines in an appropriate script which is run as
  * the system is shutdown:
@@ -188,7 +188,7 @@
  *	chmod 600 $random_seed
  *	poolfile=/proc/sys/kernel/random/poolsize
  *	[ -r $poolfile ] && bytes=`cat $poolfile` || bytes=512
- *	dd if=/dev/urandom of=$random_seed count=1 bs=bytes
+ *	dd if=/dev/urandom of=$random_seed count=1 bs=$bytes
  *
  * For example, on most modern systems using the System V init
  * scripts, such code fragments would be found in