Properly shut down crawler in case one prospector is misconfigured (#4037)#4046

Merged

exekias merged 1 commit intoelastic:5.3from ruflin:backport_4037_5.3

Apr 19, 2017

+36-5

Commits on Apr 19, 2017

Properly shut down crawler in case one prospector is misconfigured (elastic#4037 )
ruflin
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