fix(gae): migrate region step 1

[OremGLG]

Description

Migrate region "creating_namespaces_on_a_per_user_basis" to "gae_creating_namespaces_on_a_per_user_basis"

Fixes b/389090879

Note: Before submitting a pull request, please open an issue for discussion if you are not associated with Google.

Checklist

• I have followed Contributing Guidelines from CONTRIBUTING.MD
• Tests pass: go test -v ./.. (see Testing)
• Code formatted: gofmt (see Formatting)
• Vetting pass: go vet (see Formatting)
• These samples need a new API enabled in testing projects to pass (let us know which ones)
• These samples need a new/updated env vars in testing projects set to pass (let us know which ones)
• This sample adds a new sample directory, and I updated the CODEOWNERS file with the codeowners for this sample
• This sample adds a new Product API, and I updated the Blunderbuss issue/PR auto-assigner with the codeowners for this sample
• Please merge this PR for me once it is approved

[code-review-assist]

Hi team,

I'm currently reviewing this pull request and will provide my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly understand the changes:

This pull request, submitted by OremGLG, aims to migrate the region identifier for a specific App Engine multitenancy sample. The intent is to fix issue b/389090879.

Specifically, the changes involve updating the docs/appengine/multitenancy/namespace_user.go file. The changes are as follows:

• Line 17: The old region identifier creating_namespaces_on_a_per_user_basis is replaced with the new identifier gae_creating_namespaces_on_a_per_user_basis.
• Line 36: A corresponding change is made to the closing comment, mirroring the update in line 17.

The changes are straightforward and appear to correctly reflect the intended migration. I'll be checking for any unintended side effects during my full review.

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A little poem for your coding pleasure:

A region's name changed,
A simple fix, yet so grand,
Code flows anew.

Thanks!
Gemini

[code-review-assist]

This pull request migrates the region tag "creating_namespaces_on_a_per_user_basis" to "gae_creating_namespaces_on_a_per_user_basis" in namespace_user.go. The change is small and seems correct. The checklist is mostly irrelevant to this change and should be simplified.

[snippet-bot]

Here is the summary of changes.

You are about to add 1 region tag.

• docs/appengine/multitenancy/namespace_user.go:17, tag gae_creating_namespaces_on_a_per_user_basis

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