[asan] clang-format part of asan_report.cc


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@199877 91177308-0d34-0410-b5e6-96231b3b80d8
[asan] Print shadow memory and legend as a single printf call.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@199878 91177308-0d34-0410-b5e6-96231b3b80d8