Update tool.py: remove comma from '-h, --help

Signed-off-by: Michael LeCompte <michaelslec98@gmail.com>
Update tool.py: minor syntax/structure change

Signed-off-by: Michael LeCompte <michaelslec98@gmail.com>
Update tool.py: removed double occurrence of '<template>'

Signed-off-by: Michael LeCompte <michaelslec98@gmail.com>