tree db43da555514a4dc92b47e45e4e3dd08ddab3a87
parent dd51202f7a88c0b2e63bd57c44334e56855e0440
author Bernie Innocenti <codewiz@google.com> 1538474959 +0900
committer Bernie Innocenti <codewiz@google.com> 1539078242 +0900

Small cleanups for DNSResponder

 - use C++17's try_emplace() to simplify zero-copy map insertion
 - pass around strings instead of naked char pointers

Test: atest netd_integration_test
Change-Id: If6f3b1792bb45204a36022231321812d85f5e5c0