* spec/ruby/core/process/groups_spec.rb: on macOS, getgroups(2)
has a variant which has no limit but not setgroups(2). so the
default groups may exceed the limit. as the call of setgroups
is expected to fail here, the content does not matter.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62547 b2dd03c8-39d4-4d8f-98ff-823fe69b080e