[7.5][DOCS] Backport: Fix description of rename processor#14600

Merged

dedemorton merged 1 commit intoelastic:7.5from dedemorton:backport_14408_7.5

Nov 19, 2019

+15-13

Commits on Nov 18, 2019

[DOCS] Fix description of rename processor (elastic#14408 )
dedemorton
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