Allow to wipe workspace before cloning for gitSSHCheckout for Mirantis package

Patch I0a1c8491584b7e50140b738303bad9240fd7f347 missed this change for
main lib package, so let's add it, because basic 'vars' functions will
be removed.

Change-Id: Ic1dec6bd48ca82d87a730e85b4730d25cbcafa8f
1 file changed
tree: 58eb8af0cc54194d50a7582281fe7b2cfb2839e3
  1. src/
  2. vars/
  3. .gitreview