Fix incorrect variable name

[mlarraz]

Description

This appears to be a typo that causes error when #respond_to? is called on either of these objects.

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[dblock]

Looks like it! Care to write a unit test please?

[mlarraz]

Looks like it! Care to write a unit test please?

Any guidance on which file to put it in?

[nhtruong]

There's currently no unit tests for this yet. If you're to add one, it should be in ./spec/opensearch/client/unit. Something like:

require_relative '../../../spec_helper'

describe 'OpenSearch::Client#respond_to_missing?' do
  it 'returns to correct results' do
    client = OpenSearch::Client.new
    expect(client.send(:respond_to_missing?, :perform_request)).to be true
    expect(client.send(:respond_to_missing?, :something_else)).to be false
  end
end

[nhtruong]

@mlarraz I've created a PR into your branch: https://github.com/mlarraz/opensearch-ruby/pull/1/files

[nhtruong]

@mlarraz Corrected the header: https://github.com/mlarraz/opensearch-ruby/pull/2/files

[nhtruong]

@dblock Would you mind adding your review? I have commits in this PR so my review doesn't count.

[dblock]

Should we change the number of approvers like in opensearch-project/opensearch-php#179? If you agree open an issue and I'll vote yes @nhtruong? :)

[nhtruong]

@dblock I thought this one only needed 1 approver. Let's do that like other small repos we have.

[dblock]

@nhtruong You're right, not sure what I was seeing, maybe an unresolved conversation or smth... ignore me.

[nhtruong]

I saw unresolved request too but didn't see any option to resolve your comment.