Merge branch 'jh/submodule-foreach'

* jh/submodule-foreach: git clone: Add --recursive to automatically checkout (nested) submodules t7407: Use 'rev-parse --short' rather than bash's substring expansion notation git submodule status: Add --recursive to recurse into nested submodules git submodule update: Introduce --recursive to update nested submodules git submodule foreach: Add --recursive to recurse into nested submodules git submodule foreach: test access to submodule name as '$name' Add selftest for 'git submodule foreach' git submodule: Cleanup usage string and add option parsing to cmd_foreach() git submodule foreach: Provide access to submodule name, as '$name' Conflicts: Documentation/git-submodule.txt git-submodule.sh