Disable DeadStores scan-build checker
This silences a true, but minor, bug in the external json-parser:
externals/json-parser/json.c:653:37: warning: Value stored to 'b' is never read
b = 0;
^   ~
@@ -22,5 +22,5 @@ function scan_build {
extra_args+=("--use-c++=$CXX")
fi
- scan-build "${extra_args[@]}" --status-bugs "$@"
+ scan-build "${extra_args[@]}" --status-bugs -disable-checker deadcode.DeadStores "$@"
}
