Squashed 'deps/libmuxx/' changes from ee3d02d..4279415
Squashed 'deps/libmuxx/' changes from ee3d02d..4279415

4279415 optimize cycling algorithm

git-subtree-dir: deps/libmuxx
git-subtree-split: 4279415fece621fd86c1136e650a829ebb3fc435

muxx-utils/opt