Yuwei Zhou 7b9864776a Fixes #39648 azure_rm_virtualnetwork not handling DNS settings properly on existing virtual networks (#40646) ... * check nullable * add test * fix * fix		2018-05-28 15:45:01 +08:00
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ansible	Fixes #39648 azure_rm_virtualnetwork not handling DNS settings properly on existing virtual networks (#40646)	2018-05-28 15:45:01 +08:00