Closes: #1618.
When using RAID disk, the disks paths could look like /dev/dm-1. Current regular
expression does not allow for '-' in the device path.
Ensure that all characters in the device path are handled as part of eject
operation.
Signed-off-by: Sunil Mohan Adapa <sunil@medhas.org>
Reviewed-by: James Valleroy <jvalleroy@mailbox.org>