Touchbot II: fix typo in line.py

There was a little bug in line.py where the order of operations was
trying to apply a formatter to a string before concatenating it all
together.  The result was a crash whenever it tried to print out the
usage message.  This patch puts some parenthesis around the string
concatenation to make sure all of the formatters have a place to go now.

BUG=chromium:312872
TEST=tested on Lumpy, it works and can print error messages without
crashing now.

Change-Id: I7bef4c54fdada1cfa024fbe079639939d774a0f2
Signed-off-by: Charlie Mooney <charliemooney@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174983
Reviewed-by: Shyh-In Hwang <josephsih@chromium.org>
1 file changed
tree: aad0f61314e4931ec9775a76c2970d08e5f8f8c5
  1. documentation/
  2. gestures/
  3. roibot/
  4. test/
  5. tools/
  6. touchbotII/
  7. README
  8. setup.py