(FACT-3434) Accept ffi >= 1.16.3, < 1.17.0 #2707
Merged
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ffi 1.16.0 - 1.16.2 had a bug when defining a layout in an FFI::Struct and it
was fixed in 1.16.3[1]:
However, we can't require a minimum version of 1.16.3, because facter is
required by puppet, which also has a strict ffi requirement on '1.15.5'.
So in order to gradually update, facter needs to accept the range from 1.15.5 to
1.17.0, but exclude the problematic ffi versions.
[1] ffi/ffi#1056