Updated the documentation and return sensible message if testcase failed.

./runltp -f io_cd
...
ERROR [line: open failed : No medium found
]
...

After this patch the return error will be like this:

ERROR [line: open failed /dev/cdrom : No medium found
]

Which makes much more sense for user.

Signed-off-by: Rishikesh K Rajak <risrajak@linux.vnet.ibm.com>
1 file changed