tests/test-empty-dir.t

tests: use baseurl instead of advertisedbaseurl

The distinction matters for e.g. hosts behind load balancers. But for
the test environment, it doesn't matter.

For whatever reason, advertisedbaseurl is resolving to
http://1.0.0.127.in-addr.arpa:$HGPORT on my MBP. This hostname fails
to resolve, causing the test to fail. No clue what's up with that
behavior.

Differential Revision: https://phab.mercurial-scm.org/D4973

  $ hg init

  $ echo 123 > a
  $ hg add a
  $ hg commit -m "first" a

  $ mkdir sub
  $ echo 321 > sub/b
  $ hg add sub/b
  $ hg commit -m "second" sub/b

  $ cat sub/b
  321

  $ hg co 0
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved

  $ cat sub/b 2>/dev/null || echo "sub/b not present"
  sub/b not present

  $ test -d sub || echo "sub not present"
  sub not present