Fix some typos

[javiereguiluz]

No description provided.

[kamil-tekiela]

Thank you, but I'm not sure what sense is there in fixing typos in PHP 7.4. This is not a bug fix in any way. Merging this could prove cumbersome. Why not fix typos on Master?

[javiereguiluz]

Sorry about that! I followed the practices stablished in the Symfony project: submit fixes to the oldest maintained branch to merge them there and in all the upper supported branches (PHP-8.0, master, etc.)

I don't know which are the practices followed in this repository. Should I rebase to master? PHP-8.0? Thanks!

[kocsismate]

I don't know which are the practices followed in this repository. Should I rebase to master? PHP-8.0? Thanks!

Please use the master branch for any changes which are not necessary to backport to older branches. Fixing typos is generally this kind of change :)

[kamil-tekiela]

If it's a security issue, do N-3 versions.
If it's a bug fix, do N-2 versions.
For everything else, make changes on master.

[javiereguiluz]

Thanks for your help! It was very useful 👍

I've just rebased to master.