ideally it should never reach it, but there was already multiple issues with infinite loop
at following symlinks. this fixes hanging unit tests
Docker-DCO-1.1-Signed-off-by: Lajos Papp <lajos.papp@sequenceiq.com> (github: lalyos)
Upstream-commit: b51c366bfc963687b8cc14df614a2fc10bad6306
Component: engine