Fix double dots in template file name extensions

[heaths]

Fixes #33515 and may be solution or work around to dotnet/templating#5955

[heaths]

This may fix or at least work around the problem. In testing with tree /f, I don't see any double dots after this. File names appear right, but it may be good to pull this branch and test it with the automation process. If you have the GitHub CLI you can run gh pr clone #33520, or you can add my remote to your local clone and checkout my branch e.g., git remote add heaths https://github.com/heaths/azure-sdk-for-net.git && git fetch heaths && git checkout heaths/issue33515.

[heaths]

Note: I also formatted the document since editors like VSCode are going to at least reformat code one modifies. In general, it's best to keep code formatted so frequent re-formatting doesn't happen.

If you look at the PR and hide whitespace changes, you'll find it's very small.

[chunyu3]

Hello @heaths I tried this solution in test env, it works. After the PR is merged, I will try it in prod env. Thanks.

[heaths]

@chunyu3 can you test this again? I generated a new version and checked a few files' contents, but a more thorough test like you did last night would be great.

[chunyu3]

@chunyu3 can you test this again? I generated a new version and checked a few files' contents, but a more thorough test like you did last night would be great.

Hello @heaths I have tried in test env, it works. Thanks