Small typo in code

[xiqi98]

https://github.com/google-research/FirstOrderLp.jl/blob/4ccab200d4247dec930754fa47e6517860dd45ec/src/primal_dual_hybrid_gradient.jl#L388

It appears to me that it should be

sqrt(epsilon * (k - 1))

in this line, according to Theorem 4.1(a) in the paper https://pdfs.semanticscholar.org/2b2e/a941e55e5fa2ee9d8f4ff393c14482051143.pdf

Maybe this is a typo?

[mlubin]

CC @ohinder

[ohinder]

Yes, this is a typo. Thanks for catching it!

[dapplegate]

Reopening, just to track issue until pull request is merged.