[fix](variable) Resolve the issue of returning content exceptions when dealing with non master set error variables

[whutpencil]

…n dealing with non master set error variables

What problem does this PR solve?

When setting an incorrect variable to a non master, the returned content is abnormal:

`
mysql> set global group_by_and_having_use= false;

ERROR 1193 (HY000): errCode = 2, detailMessage = Unknown system variable '%s',the similar variables are %s
`

Issue Number: close #xxx

Related PR: #xxx

Problem Summary:

Release note

None

Check List (For Author)

• Test

  • Regression test
  • Unit Test
  • Manual test (add detailed scripts or steps below)
  • No need to test or manual test. Explain why:
    • This is a refactor/code format and no logic has been changed.
    • Previous test can cover this change.
    • No code files have been changed.
    • Other reason

• Behavior changed:

  • [ - ] No.
  • Yes.

• Does this need documentation?

  • [ - ] No.
  • Yes.

Check List (For Reviewer who merge this PR)

• Confirm the release note
• Confirm test cases
• Confirm document
• Add branch pick label

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