Jarek Radosz 910796c4b4
DEV: Fix git deprecation warnings in specs (#15503)
The warnings on git 2.28+ are:

```
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: 	git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: 	git branch -m <name>
```
2022-01-09 20:26:19 +01:00
..