Fix log copying in repeat-test.sh
Fix log copying in repeat-test.sh

The current code checks the current directory for log files instead of
the log directory. Therefore, no files from the log directory are
archived unless a file with a matching name happens to be in the current
directory. This patch fixes that bug.

Change-Id: Ieed93665eb23c45016f76ad1ec49074ffe256ff4

openstack/training-labs,openstack/training-labs,openstack/training-labs