Fix a syntax issue in the setup.py

Add a comma after the long_description in setup.py so that
its syntax is correct.

BUG=chromium:474477
TEST=None. Will be tested with the modified ebuild file.

Change-Id: Ic8d766d0a3fde5f6b75980bb4134a157aacced0f
Reviewed-on: https://chromium-review.googlesource.com/264280
Reviewed-by: Charlie Mooney <charliemooney@chromium.org>
Commit-Queue: Shyh-In Hwang <josephsih@chromium.org>
Tested-by: Shyh-In Hwang <josephsih@chromium.org>
diff --git a/setup.py b/setup.py
index d362c47..6bafedd 100755
--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@
 setup(name='touch_firmware_test',
       version='1.0',
       description='Touch Firmware Testing Suite',
-      long_description='This contains tools for testing touch devices.'
+      long_description='This contains tools for testing touch devices.',
       license='BSD-Google',
       packages=['webplot',
                 'webplot.remote',