OPSMN-3357: Changed discard msg property value from 'Discard' to 'Cancel'
OPSMN-3357: Changed discard msg property value from 'Discard' to 'Cancel'

Use of 'Cancel' sounds more appropriate and seems to be widely
used than 'Discard'.

krishagni/openspecimen,krishagni/openspecimen,krishagni/openspecimen