Update build-tools to ab/4987844
am: 80f3c69f57

Change-Id: Ib05e7866f388ab3051fb9fd972101d34e170081c
tree: 48024d4a6d9196cb2cf40b94a609758f6ff4b773
  1. common/
  2. darwin-x86/
  3. linux-x86/
  4. build-prebuilts.sh
  5. manifest.xml
  6. OWNERS