[3.7] bpo-36564: Fix infinite loop in email folding logic (GH-12732)#14798

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miss-islington merged 1 commit intopython:3.7from

miss-islington:backport-f69d5c6-3.7

Jul 16, 2019

Commits on Jul 16, 2019

Fix infinite loop in email folding logic (GH-12732)

pganssle
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miss-islington
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