Credstash.log is created in current directory even when --log-file is provided.

[ElayneB]

Running into a problem where credstash creates the file credstash.log in the current directory even if I pass it the --logfile argument. E.g.
credstash --log-file '/tmp/credstash.log' --table $CREDSTASH_TABLE --region $AWS_REGION getall --format dotenv creates the file /tmp/credstash.log but it also creates a file credstash.log in the current working directory.

[mike-luminal]

Resolved in #279,