minor #28345 chore: rename AppVeyor filename (Kocal)

This PR was merged into the 2.8 branch.

Discussion
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chore: rename AppVeyor filename

| Q             | A
| ------------- | ---
| Branch?       | 2.8
| Bug fix?      | no
| New feature?  | no <!-- don't forget to update src/**/CHANGELOG.md files -->
| BC breaks?    | no     <!-- see https://symfony.com/bc -->
| Deprecations? | no <!-- don't forget to update UPGRADE-*.md and src/**/CHANGELOG.md files -->
| Tests pass?   | yes    <!-- please add some, will be required by reviewers -->
| Fixed tickets | ~   <!-- #-prefixed issue number(s), if any -->
| License       | MIT
| Doc PR        | ~ <!-- required for new features -->

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In [AppVeyor documentation](https://www.appveyor.com/docs/build-configuration/#yaml-file-alternative-naming), it says that is possible to use alternative filename `.appveyor.yml`.

By doing this, I find this more consistent with Travis file which starts with a `.` too.

Commits
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b133bd6bd3 chore: rename Appveyor filename
This commit is contained in:
Fabien Potencier 2018-09-04 10:13:26 +02:00
commit b102e72856