tree 891fc2808861bc6f104717d8e5251cbe1e3cce75
parent b6ebe4c89aebe9fd4b484371cb02f92e93bfa50c
author Michael Walsh <micwalsh@us.ibm.com> 1563312781 -0500
committer George Keishing <gkeishin@in.ibm.com> 1563460079 +0000

tally_sheet: no duplicates

- In add_row method, added new code to forbid adding entries that have already
  been added.
- Also in sprint_report method, added support for empty tally sheet.

Change-Id: I2c64430099bf5f5d34abfbfbd153bdd135bf2ed0
Signed-off-by: Michael Walsh <micwalsh@us.ibm.com>