FreeBSD/doc 4781073 (r53570)pt_BR.ISO8859-1/books/porters-handbook pt_BR.po book.xml

pt_BR/books/porters-handbook: Sync with en_US r53525

Fix several failing strings reported by Weblate (Quality checks).

Approved by:    ebrandi
Obtained from:  https://weblate.eastus.cloudapp.azure.com/projects/freebsd-doc/boooks_porters-handbook/pt_BR/
Differential Revision:  https://reviews.freebsd.org/D22270
DeltaFile
+11,152-10,045pt_BR.ISO8859-1/books/porters-handbook/pt_BR.po
+977-600pt_BR.ISO8859-1/books/porters-handbook/book.xml
+12,129-10,6452 files

UnifiedSplitRaw