[7.x] Ensure rule message do not span multiple lines (#62391)#62480

Merged

rylnd merged 1 commit intoelastic:7.xfrom rylnd:backport/7.x/pr-62391

Apr 3, 2020

+11-13

Commits on Apr 3, 2020

Ensure rule message do not span multiple lines (elastic#62391 )
rylnd
committed