message: hammer: fixed directory for lcov coverage
diff: @@ -44,7 +44,7 @@ if(JSON_Coverage)
  # (filter script from https://stackoverflow.com/a/43726240/266378)
  add_custom_target(lcov_html
  COMMAND lcov --directory . --capture --output-file json.info --gcov-tool ${GCOV_BIN} --rc lcov_branch_coverage=1
  - COMMAND lcov -e json.info ${CMAKE_SOURCE_DIR}/src/json.hpp --output-file json.info.filtered --rc lcov_branch_coverage=1
  + COMMAND lcov -e json.info ${CMAKE_SOURCE_DIR}/single_include/nlohmann/json.hpp --output-file json.info.filtered --rc lcov_branch_coverage=1
  COMMAND ${CMAKE_SOURCE_DIR}/test/thirdparty/imapdl/filterbr.py json.info.filtered > json.info.filtered.noexcept
  COMMAND genhtml --title "JSON for Modern C++" --legend --demangle-cpp --output-directory html --show-details --branch-coverage json.info.filtered.noexcept
  COMMENT "Generating HTML report test/html/index.html"
  