Warn when using unrecognized/uncommon tags.

Such tags don't do anything, so using them is at
best a no-op, at worst a typo where the author intended
something else.

Change-Id: I1462032f4df3564b06a82685f226a6d5a665a633
1 file changed
tree: 7db0ebe003cd83f1924517a3670717ef979d4d43
  1. core/
  2. libs/
  3. target/
  4. tools/
  5. buildspec.mk.default
  6. cleanspec.mk
  7. envsetup.sh