tests/test-update-issue1456.t

tests: add missing trailing 'cd ..'

Many tests didn't change back from subdirectories at the end of the tests ...
and they don't have to. The missing 'cd ..' could always be added when another
test case is added to the test file.

This change do that tests (99.5%) consistently end up in $TESTDIR where they
started, thus making it simpler to extend them or move them around.

  $ "$TESTDIR/hghave" execbit || exit 80

  $ rm -rf a
  $ hg init a
  $ cd a

  $ echo foo > foo
  $ hg ci -qAm0
  $ chmod +x foo
  $ hg ci -m1
  $ hg co -q 0
  $ echo dirty > foo
  $ hg up -c
  abort: uncommitted local changes
  [255]
  $ hg up -q
  $ cat foo
  dirty
  $ hg st -A
  M foo

Validate update of standalone execute bit change:

  $ hg up -C 0
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ chmod -x foo
  $ hg ci -m removeexec
  nothing changed
  [1]
  $ hg up -C 0
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg up
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg st

  $ cd ..