Darragh Bailey d4ddd8a1d7 Fall back to git clone if zuul-cloner not available
Allow running of the compare test on developer workstations where it is
less common for zuul-cloner to be present by falling back to using git
clone with a depth of 1 if zuul-cloner is not available.

Change-Id: Idedc726bea12fb8862cd9574d9ce17b29011c15f
2015-06-09 11:51:23 +01:00
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