[PATCHv2 0/4] submodule helper: cleanup prefix passing

The first two patches fix two subtle bugs that would show up if we'd
apply the third patch without them. The third patch replaces
 
    git submodule--helper --prefix $wt_prefix list

by the more Git idiomatic 

    git -C $wt_prefix submodule--helper list

The series is finished by adding more tests which would have helped
to have when developing this series.

This applies to origin/master.

A prior version can be found at 
$gmane/287620

Thanks,
Stefan

Stefan Beller (4):
  submodule: fix recursive path printing from non root directory
  submodule: fix recursive execution from non root directory
  submodule--helper list: lose the extra prefix option
  submodule: add more tests for recursive submodule behavior

 builtin/submodule--helper.c |  5 +----
 git-submodule.sh            | 19 +++++++++++--------
 t/t7403-submodule-sync.sh   | 13 +++++++++----
 t/t7406-submodule-update.sh | 12 ++++++++++++
 4 files changed, 33 insertions(+), 16 deletions(-)

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2.8.0.rc4.10.g52f3f33