tree ef35ba77f853d608696a66d42c42a8e76459cb68
parent 0f6133a2da8f3afedffebcfc5a02e075413f67e5
author Dan Willemsen <dwillemsen@google.com> 1528237789 -0700
committer Dan Willemsen <dwillemsen@google.com> 1528237789 -0700

Update build-tools to ab/4822804

Includes the output serialization patches for ninja to support external
frontends.

Test: m blueprint_tools
Test: treehugger
Change-Id: I9cf61bed35082caa73216b32487bfd7338f61a56