chruby: suggest appending to RUBIES in caveats.

Closes #34400.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
chruby 0.3.9

Closes #34401.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
formula_installer: don't always post_install.

We don't want to do so when building bottles or we can end up with some weird stuff being bottled unintentionally (and it'll run twice; once before bottling, once afterwards).

Fixes #34349.

Closes #34397.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
gecode 4.3.2

Closes #34407.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
gecode: add 4.3.2 bottle.