GitRepository/rev_parse: use _git_inout()
authorMarkus Lehtonen <markus.lehtonen@linux.intel.com>
Tue, 11 Sep 2012 12:08:13 +0000 (15:08 +0300)
committerJun Wang <junbill.wang@samsung.com>
Wed, 27 Jan 2016 09:27:17 +0000 (17:27 +0800)
instead of the deprecated _git_getoutput() method.

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>

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