Backport PR #17715 on branch v3.3.x (Clarify gridspec error message for non-integer inputs.)#17718

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tacaswell merged 1 commit intomatplotlib:v3.3.xfrom

meeseeksmachine:auto-backport-of-pr-17715-on-v3.3.x

Jun 22, 2020

Commits on Jun 22, 2020

Backport PR #17715: Clarify gridspec error message for non-integer inputs.

tacaswell
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meeseeksmachine
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