submodule sync: use submodule--helper is-active
authorBrandon Williams <bmwill@google.com>
Thu, 16 Mar 2017 22:29:46 +0000 (15:29 -0700)
committerJunio C Hamano <gitster@pobox.com>
Fri, 17 Mar 2017 18:06:09 +0000 (11:06 -0700)
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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