[type/__update_alternatives] Fix for non-English locales

Since update-alternatives(1) is localized, screen scraping its output breaks
if the locale is set to non-English.
3 jobs for fix/type/__update_alternatives/dry-run in 2 minutes and 31 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #10601
pycodestyle

00:00:41

passed #10600
shellcheck

00:00:52

passed #10602
unit_tests

00:00:57