qa/tasks/cephadm.py: decode data returned by teuthology.get_file()

it's used as part of the command line sent to shell, so we need to
decode it first.

Signed-off-by: Kefu Chai <kchai@redhat.com>
This commit is contained in:
Kefu Chai 2020-04-07 23:05:30 +08:00
parent 23ddf03d26
commit 6eb57a2a4f