Fix behaviour when config loading fails

[pcgilday]

Proposed changes

When loading a config and result is falsy, set empty config for result.

fixes #26

Types of changes

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• Bug (non-breaking change which fixes an issue)
• Feature (non-breaking change which adds functionality)
• Breaking Change (fix or feature which changes existing functionality)

Checklist

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• I have read the CONTRIBUTING guide
• Lint and unit tests pass with my changes
• I have added tests that prove my fix is effective/works
• I have added necessary documentation (if appropriate)
• Any dependent changes are merged and published in downstream modules

Further comments

Do you have any suggestions on how to add a test for this? cosmiconfig searches the file tree, and there is a config in the file tree, so, I wasn't sure the best approach to write a test that does not have a config? I will think a little longer on it, but wanted to get the PR open and see if anyone had suggestions.

I did not see a CONTRIBUTING.md file or contributing guidelines in this repo, so I did the best I could to follow what I believe would be expected. Let me know if I missed anything.

Reviewers: @michael-ciniawsky, @ertrzyiks

[GitCop]

⚠️ Pull Request - Issues ⚠️

• Commit: 1ebe246
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[coveralls]

Coverage decreased (-0.6%) to 85.714% when pulling b549bc6 on pcgilday:26-fix-no-config-behaviour into 5e7e307 on michael-ciniawsky:master.

[coveralls]

Coverage decreased (-0.6%) to 85.714% when pulling b549bc6 on pcgilday:26-fix-no-config-behaviour into 5e7e307 on michael-ciniawsky:master.

[coveralls]

Coverage decreased (-0.6%) to 85.714% when pulling b549bc6 on pcgilday:26-fix-no-config-behaviour into 5e7e307 on michael-ciniawsky:master.

[michael-ciniawsky]

👍 Thx