Treat unknown dns modes as empty string (ie. opportunistic)

Bug: 260211513
Test: TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I39282d887ec17bf4ed7aee2a7ae712d69b94bc31
1 file changed
tree: 7d301db1978bc0607f9e59fb8770a176349b2c90
  1. client-libs/
  2. common/
  3. .gitignore
  4. OWNERS
  5. PREUPLOAD.cfg
  6. TEST_MAPPING