Merge topic 'Boost-Gentoo'

0b54f72e FindBoost: Fix detection with version suffixes on Gentoo

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !3237
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passed cmake-dash3win7-windows-release-ninja

00:32:34

passed cmake-hythloth-linux-debug-makefiles+sphinx

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passed cmake-minoc-linux-release-lint-iwyu-tidy

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passed cmake-moonshade-osx-debug-ninja

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passed cmake-terfin-windows-release-vs2019

01:18:53