btrfs-{restore, version, scrub}, mkfs.btrfs: add pt_BR translation (#10110)

* btrfs-restore: Add pt_BR translation

* btrfs-version: Add pt_BR translation

* btrfs-scrub: Add pt_BR translation

* mkfs.btrfs: Add pt_BR translation

* fix: remove trailing whitespaces and surround example by new line

* Update pages.pt_BR/linux/btrfs-restore.md

Co-authored-by: Waldir Pimenta <waldyrious@gmail.com>

* Update pages.pt_BR/linux/btrfs-restore.md

Co-authored-by: Waldir Pimenta <waldyrious@gmail.com>

* Update pages.pt_BR/linux/btrfs-restore.md

Co-authored-by: Waldir Pimenta <waldyrious@gmail.com>

* fix: put beginning verbs in infinitive

---------

Co-authored-by: Waldir Pimenta <waldyrious@gmail.com>

pages.pt_BR/linux/btrfs-version.md

@@ -0,0 +1,12 @@
+# btrfs version
+
+> Exibe a versão do btrfs-progs.
+> Mais informações: <https://btrfs.readthedocs.io/en/latest/btrfs.html>.
+
+- Exibir a versão do btrfs-progs.
+
+`btrfs version`
+
+- Exibir a ajuda.
+
+`btrfs version --help`