[7.x] Warn users when security is not configured (#78545)#79596

Merged

legrego merged 1 commit intoelastic:7.xfrom legrego:backport/7.x/pr-78545

Oct 6, 2020

+1,865-7

Commits on Oct 5, 2020

Warn users when security is not configured (elastic#78545 )
legrego
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