pep8-ify handleArgs to be handle_args

Rename the method, with args passed as a list instead of as *args,
and add do_help parameter as an easy way for the caller to handle
-help and also prevent sys.exit() being invoked.

Change-Id: I6eb20ca4b6ba8886f2d1fb31afcb2b2f86da40df
Merge "pep8-ify handleArgs to be handle_args"