fix(lib/options): handle {Object} return (options.plugins)

[michael-ciniawsky]

Type

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• Fix

SemVer

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• Fix (:label: Patch)

Checklist

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• 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

[coveralls]

Coverage increased (+1.3%) to 86.164% when pulling 817680d on fix into 58e9996 on master.