[autotest] Add comma back in urls, minor fix in docstring

Add comma back in assignment statement to urls to make it a list.
Minor typo fix in suite_scheduler docstring.

BUG=None
TEST=run_sutie against lumpy with smoke suite, and run suite_scheduler
agaist a test suite.

Change-Id: I04696407cb44848de14160fc00c7ce7583210b31
Reviewed-on: https://gerrit.chromium.org/gerrit/43796
Commit-Queue: Dan Shi <dshi@chromium.org>
Reviewed-by: Dan Shi <dshi@chromium.org>
Tested-by: Dan Shi <dshi@chromium.org>
2 files changed