Don't log at warning level in git client
Don't log at warning level in git client

When the git client fails to make some actions in the local clone dirs
it will try to undo them and will always bubble up an error if it needs
to, so callers can log those as necessary. It is not useful to log the
intermittent errors as warnings from the client since it is just noise.

Signed-off-by: Steve Kuznetsov <a7da0fca91d9933d2725d731a48cabdc9e8ffd7a@redhat.com>

krzyzacy/test-infra,brahmaroutu/test-infra,dims/test-infra,cblecker/test-infra,cblecker/test-infra,monopole/test-infra,cjwagner/test-infra,BenTheElder/test-infra,dims/test-infra,kubernetes/test-infra,lavalamp/test-infra,dims/test-infra,BenTheElder/test-infra,brahmaroutu/test-infra,cjwagner/test-infra,fejta/test-infra,kubernetes/test-infra,krzyzacy/test-infra,brahmaroutu/test-infra,lavalamp/test-infra,pwittrock/test-infra,dims/test-infra,pwittrock/test-infra,fejta/test-infra,lavalamp/test-infra,lavalamp/test-infra,fejta/test-infra,kubernetes/test-infra,BenTheElder/test-infra,cjwagner/test-infra,fejta/test-infra,ixdy/kubernetes-test-infra,brahmaroutu/test-infra,fejta/test-infra,jessfraz/test-infra,krzyzacy/test-infra,cjwagner/test-infra,krzyzacy/test-infra,michelle192837/test-infra,krzyzacy/test-infra,ixdy/kubernetes-test-infra,kubernetes/test-infra,cblecker/test-infra,dims/test-infra,cjwagner/test-infra,jessfraz/test-infra,pwittrock/test-infra,BenTheElder/test-infra,ixdy/kubernetes-test-infra,michelle192837/test-infra,cblecker/test-infra,michelle192837/test-infra,jessfraz/test-infra,pwittrock/test-infra,cjwagner/test-infra,monopole/test-infra,jessfraz/test-infra,jessfraz/test-infra,monopole/test-infra,BenTheElder/test-infra,fejta/test-infra,pwittrock/test-infra,michelle192837/test-infra,kubernetes/test-infra,kubernetes/test-infra,michelle192837/test-infra,dims/test-infra,krzyzacy/test-infra,michelle192837/test-infra,brahmaroutu/test-infra,ixdy/kubernetes-test-infra,lavalamp/test-infra,monopole/test-infra,ixdy/kubernetes-test-infra,monopole/test-infra,cblecker/test-infra,cblecker/test-infra,BenTheElder/test-infra,jessfraz/test-infra,monopole/test-infra,brahmaroutu/test-infra,lavalamp/test-infra