pep8 and output changes to openbmc_ffdc.py.
pep8 and output changes to openbmc_ffdc.py.

  - Made some pep8 corrections.
  - Made output improvements.

Change-Id: Id63b5abd7751ba8f183a68f900dac99e85304683
Signed-off-by: Michael Walsh <10404802c7de463f402c4a18638106ca1b12ef61@us.ibm.com>

openbmc/openbmc-test-automation,openbmc/openbmc-test-automation