MacOS tmux install error

[Gregory Ling]

When installing on MacOS Mojave, the installer downloads tmux through homebrew, but it installs version 2.8. In the script, it checks that tmux is between 1.9 and 2.2, so the installer never passes. I added @2.2 on the brew install line of the script:

370: brew install tmux@2.2 > /dev/null || (brew remove tmux &>/dev/null && brew install tmux@2.2 >/dev/null)
371: ln -sf "$(which tmux)" "$C9_DIR"/bin/tmux

However, this does not work because homebrew does not have a version 2.2 of tmux. Should I install 2.8 and override the restrictions?

if [ "$("$PYTHON" -c "print 1.7<=$tmux_version and $tmux_version <= 2.2")" == "True" ]; then
  return 0
else
  return 1
fi

It seems to have worked (replace 2.2 with 2.8 in the version max), but I wanted to post this in case others are having this problem.