Remove unnecessary % mark

issue

$ ./check_pending_sector
/dev/sda:0%(OK)

to be

$ ./check_pending_sector
/dev/sda:0(OK)

resolve #6
Output info message

resolve #5
[fix]Get correctly device name

Issue:
  $ /usr/lib/nagios/plugins/check_bad_sector -w 10 -c 20
  Reallocated_Sector_Ct is not found.

https://github.com/tacahilo/nagios-plugins/blob/8458e9bd72ece6c4bfccf880b4c77308159d562a/check_bad_sector#L55
'$#' prints the number of arguments passed to a shell script.

for example, 'check_bad_sector -w 10' includes 2 args.
In this case, '$# -gt 0' indicate true, and then 'devices' variable has '-w' strings.

resolve #4