generating a git repo: main instead of master

[Uwe Brauer]

Hi

It seems that more and more public repositories expect that the principal git 
branch should be «main» instead of «master»


However, the following steps in emacs lead to a git repository, where the 
principal branch is master instead of main.

    1. Opening an empty file in an empty directory

    2. Write something and register the file

    3. Chose git

    4. Commit

Voila the result is 
,----
| * commit 9b1b90c4bb29dbb50320b71cf182e6ad46ab3ac5 (HEAD -> master)
|   Author: Uwe Brauer <oub@mat.ucm.es>
|   Date:   Sun Nov 13 09:01:42 2022 +0100
| 
|       First commit
`----

How can I change this behavior to have 
,----
| 
| * commit 9b1b90c4bb29dbb50320b71cf182e6ad46ab3ac5 (HEAD -> main)
|   Author: Uwe Brauer <oub@mat.ucm.es>
|   Date:   Sun Nov 13 09:01:42 2022 +0100
| 
|       First commit
`----

Thanks and regards

Uwe Brauer 

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