Use __ as the separator for the exported vars in bsd.compiler/linker.mk
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Authored by arichardson on Nov 15 2019, 3:41 PM.

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bdrewery
emaste

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rS354736: Use __ as the separator for the exported vars in bsd.compiler/linker.mk

Summary

By using '__' instead of '.' as the separator we can also support systems
that use dash as /bin/sh (it's the default shell on Ubuntu/Debian). Dash
will unset any environment variables that use a non alphanumeric+undedscore
character and therefore submakes will fail to import the COMPILER_*
variables if we use '.' as the separator.