Baselibs 7.18.2

This is a patch release of Baselibs 7.18. It fixes a build-time issue between NAG and MPICH. It was more of a "quality of life" change which removed some annoying prints.

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From CHANGELOG.md

Fixed

• Fixed bad interaction between NAG and baselibs-config.mk

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What's Changed

• Fix issue between NAG and baselibs-config by @mathomp4 in #160
• Prepare for 7.18.2 release by @mathomp4 in #161

Full Changelog: v7.18.1...v7.18.2