Ryan Ernst 0255c45f1f Build: Use a deep clone of ES for ci (elastic/x-pack-elasticsearch#840)
WIth the addition of building the backcompat version in elasticsearch, a
shallow clone no longer works, as we need to have eg 5.x branch
available. This change removes the depth argument from cloning
elasticsearch.

Original commit: elastic/x-pack-elasticsearch@3d89fe92ec
2017-03-24 11:50:02 -07:00
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