It looks like tool/sync_default_gems.rb is not capable of cherry-picking commits from ruby/irb. I just executed tool/sync_default_gems.rb irb to fix the sync status.
I'm not sure if what's the cause. It could be related to some diff that doesn't exist in ruby/ruby, or it might be related to non-linear history due to merge commits. For next time, I'd like to at least exclude the second possibility, so I disabled merge commits in ruby/irb.
Sync IRB master: tool/sync_default_gems.rb irb
It looks like tool/sync_default_gems.rb is not capable of cherry-picking
commits from ruby/irb. I just executed
tool/sync_default_gems.rb irbto fix the sync status.
I'm not sure if what's the cause. It could be related to some diff that
doesn't exist in ruby/ruby, or it might be related to non-linear history
due to merge commits. For next time, I'd like to at least exclude the
second possibility, so I disabled merge commits in ruby/irb.