message: exclude xxhash from coverage
diff: @@ -47,6 +47,7 @@ LCOV=(
  "$project_dir"'/examples/*' \
  "$project_dir"'/tools/*' \
  "$project_dir"'/tests/*' \
  + "$project_dir"'/include/velocypack/velocypack-xxhash*' \
  "$project_dir"'/src/*xxh*' \
  "$project_dir"'/src/*hash*' \
  "$project_dir"'/src/powers.h' \
  