allow range on nil maps

R=ken
OCL=26663
CL=26663
2 files changed
tree: 0082f9d1b1e6adb4db63f2430cd84f8f82cd4ff6
  1. doc/
  2. include/
  3. lib/
  4. pkg/
  5. src/
  6. test/
  7. usr/