fetch_souces.py: cache extracted hash and only extract if necessary am: 30e2e7b423...
authorPyry Haulos <phaulos@google.com>
Tue, 22 Aug 2017 17:39:22 +0000 (17:39 +0000)
committerandroid-build-merger <android-build-merger@google.com>
Tue, 22 Aug 2017 17:39:22 +0000 (17:39 +0000)
am: bd35fe0f97

Change-Id: I8a3e43a1e649618cba3e29db97529903e3bc849b


Trivial merge