git-submodule - Fix bugs in adding an existing repo as a module git-submodule add would trip if path to the submodule included a space, or if its .git was a gitdir: link to a GIT_DIR kept elsewhere. Fix both. Signed-off-by: Mark Levedahl <mlevedahl@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>