Coverage change for Benchmark

coverage.patch

diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 5fb0b29..38277ab 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -54,11 +54,13 @@ if (${CMAKE_BUILD_TYPE} MATCHES "[Cc]overage")
   if (GCOV AND LCOV AND GENHTML AND MAKE AND "${CMAKE_GENERATOR}" STREQUAL "Unix Makefiles")
     add_custom_command(
       OUTPUT ${CMAKE_BINARY_DIR}/lcov/index.html
-      COMMAND ${LCOV} -q -z -d .
-      COMMAND ${LCOV} --no-external -q -c -b "${CMAKE_BINARY_DIR}" -d . -o initial.lcov  -i
+      COMMAND ${LCOV} --zerocounters -d .
+      COMMAND ${LCOV} --capture --initial --no-external -b ${CMAKE_SOURCE_DIR} -d . -o initial.lcov
       COMMAND ${MAKE} test
-      COMMAND ${LCOV} --no-external -q -c -b "${CMAKE_BINARY_DIR}" -d . -o info.lcov
-      COMMAND ${GENHTML} info.lcov --o lcov --demangle-cpp --sort -p "${CMAKE_BINARY_DIR}" -t benchmark
+      COMMAND ${LCOV} --capture --no-external -b ${CMAKE_SOURCE_DIR} -d . -o after_tests.lcov
+      COMMAND ${LCOV} -a initial.lcov -a after_tests.lcov -o final.lcov
+      COMMAND ${LCOV} --remove final.lcov "'${CMAKE_SOURCE_DIR}/test/*'" -o final.lcov
+      COMMAND ${GENHTML} final.lcov -o lcov --demangle-cpp --sort -p "${CMAKE_BINARY_DIR}" -t benchmark
       DEPENDS filter_test benchmark_test options_test basic_test fixture_test cxx03_test
       WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
       COMMENT "Running LCOV"