Mike McQuaid e12d2746b6 os/mac/diagnostic: allow custom Ruby for devs.
This avoids `brew doctor` warnings on High Sierra but in general this is
a good idea for future versions and to allow Homebrew developers to test
things out with different versions of Ruby.
2017-09-15 08:06:58 +01:00
..
2017-04-15 21:20:09 -07:00