Add JSON inventory to hardbootme test

In utils_keywords.py: Minor change in comment block.
In htx_hardbootme_test:  Fail message to comply with standards.

test results:
/gsa/ausgsa/home/s/s/ssombar/bmctest/openbmc-test-automation
  file  out*xml

solves  openbmc-test-automation/issues/626
Change-Id: I0882ee4994230d743b22e40d21132182fe8bc95d
Signed-off-by: Steven Sombar <ssombar@us.ibm.com>
4 files changed