JuliaLang/julia — pull request #5491 by StefanKarpinski (2014-01-23 16:56:16+00:00)
Title: base/bool.jl: `-0.0 + false === -0.0`.

This is one option for fixing the problem identified here: https://github.com/JuliaLang/julia/pull/5468#issuecomment-33137197.