Ref T5554. This makes git remote URL detection locale-agnostic.

The previously suggested git config remote.origin.url command does
almost the same, but does not support the URL rewriting features in
git-config (url.<base>.insteadOf).

This one does, although it has the unintuitive behavior of just printing
the passed remote name when the remote does not exist, or even when
called outside a git repo.

• Switched to non-english locale in which git has a translation.
• Ran arc which on the Arcanist repo. It could not determine the remote URI.
• Applied patch, arc which found the URI.