remote-helpers: fix the run of all tests
remote-helpers: fix the run of all tests

We don't need to check for duplicate test numbers, we don't have them,
and either way test-lint-duplicates doesn't work in this situation.

Also, while we are on it, enable test-lint-shell-syntax to check for sh
errors.

Signed-off-by: Felipe Contreras <de77a8b9cd239b204c19c52ed62e48ab47243362@gmail.com>
Signed-off-by: Junio C Hamano <a6723cc3f76163bf7adb636a73ac3b0ceb3e6b9b@pobox.com>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git