cmd/internal/goobj: manually update Magic const

[callthingsoff]

For #69928

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[gopherbot]

Message from Gopher Robot:

Patch Set 1:

(1 comment)

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Message from Cherry Mui:

Patch Set 1: Code-Review+2

(1 comment)

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Message from bcd a:

Patch Set 1:

(2 comments)

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Message from Cherry Mui:

Patch Set 1: -Code-Review

(3 comments)

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Message from bcd a:

Patch Set 1:

(1 comment)

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Message from Cherry Mui:

Patch Set 1:

(1 comment)

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[gopherbot]

This PR (HEAD: 2941c89) has been imported to Gerrit for code review.

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[gopherbot]

This PR (HEAD: 437a754) has been imported to Gerrit for code review.

Please visit Gerrit at https://go-review.googlesource.com/c/go/+/627417.

Important tips:

• Don't comment on this PR. All discussion takes place in Gerrit.
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• To change your code in response to feedback:
  • Push a new commit to the branch used by your GitHub PR.
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  • Critical: you must click the blue Reply button near the top to publish your Gerrit responses.
  • Multiple commits in the PR will be squashed by GerritBot.
• The title and description of the GitHub PR are used to construct the final commit message.
  • Edit these as needed via the GitHub web interface (not via Gerrit or git).
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• See the Sending a change via GitHub and Reviews sections of the Contribution Guide as well as the FAQ for details.

[gopherbot]

Message from bcd a:

Patch Set 3:

(2 comments)

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