tree 59d12222df2a60ac093088f790619dac71f4e849
parent 62c124ccbcc60b8c23fb07ed2f6ddced080324cf
author Dan Willemsen <dwillemsen@google.com> 1578971054 -0800
committer Dan Willemsen <dwillemsen@google.com> 1578982800 -0800

Add better warning output for stale output files

I'm running into this warning in some unexpected cases, so provide some
extra information when it hits.

Test: ninja_tests (run by build_prebuilts.sh)
Change-Id: I294cf0d38dad3324d7fc697bff94356f07f3df13