scan-build: Dead assignment in lib/ns/query.c
llvm 5.0.0 scan-build reports Dead assignment in lib/ns/query.c in query_synthcnamewildcard function.
Install full llvm (on Mac OS X: brew install llvm --with-toolchain)
Unpack the zip scan-build-2017-12-18-110416-46298-1.zip and run:
scan-view scan-build-2017-12-18-110416-46298-1 (on Mac OS X /usr/local/opt/llvm/scan-view scan-build-2017-12-18-110416-46298-1)