Added retry command to HC.
am: 8e85683d70

Change-Id: I786d18e9c2874156ba7eba59d47536463c61e576
tree: 7d5c2e8d97fde8edf22795f555a17d474bd7f9c9
  1. harnesses/
  2. host_setup/
  3. .clang-format
  4. .gitignore
  5. OWNERS