In Chaneg[1], os_testr switches the otestr command to use stestr
under the covers. So that we get warning:
ostestr.py:120:
UserWarning: No .stestr.conf file found in the CWD.
Please create one to to replace the .testr.conf. You can find a
script to do this in the stestr git repository.
So remove the .testr.conf and add .stestr.conf which was generated
using a utility script as documented here[2]:
[1] Id7cb2a39a8308f1413608dcf19273a1d7f33592e
[2] https://media.readthedocs.org/pdf/stestr/stable/stestr.pdf
Change-Id: Ibc39d9c3fe33be91be158e7f6cd574736ed89440
3fa078c4db