add glob match if whitelabel contains *

[sadeghmohebbi]

hello thanks for your awesome log exporter

consider to have a lot of servers and subdomains or it's dynamically changed. for this purpose we need glob match pattern to use. for example i wanna capture all subdomains under sampledomain.com . whitelist could be *.sampledomain.com

[codeclimate[bot]]

Code Climate has analyzed commit 8d9b0c2d and detected 2 issues on this pull request.

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Category	Count
Complexity	2

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