--config flag not working

[Xemdo]

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

Problem/Feature

Fixes #249

Description of Changes:

• Config file variable was being overwritten by local variable and not persisting globally, causing the --config flag to not work at all.

Checklist

• My code follows the Contribution Guide
• I have self-reviewed the changes being requested
• I have made comments on pieces of code that may be difficult to understand for other editors
• I have updated the documentation (if applicable)