cppcheck: Run with --check-level=exhaustive.

Resolves
 1: <BUILDDIR>/ayatana-indicator-display/src/service.cpp:0:0: information:
 Limiting analysis of branches. Use --check-level=exhaustive to analyze all
 branches. [normalCheckLevelMaxBranches]

Author: sunweaver

tests/CMakeLists.txt

@@ -28,7 +28,7 @@ endif()
 
 add_compile_options(${CXX_WARNING_ARGS})
 
-add_test(cppcheck cppcheck --enable=all -USCHEMA_DIR --error-exitcode=2 --inline-suppr --library=qt -I${CMAKE_SOURCE_DIR} -i${CMAKE_SOURCE_DIR}/tests/utils/qmain.cpp -i${CMAKE_SOURCE_DIR}/tests/gmock ${CMAKE_SOURCE_DIR}/src ${CMAKE_SOURCE_DIR}/tests --suppress=missingIncludeSystem --suppress=uninitDerivedMemberVar --suppress=unmatchedSuppression --suppress=constParameter --suppress=constParameterCallback --suppress=unusedFunction --suppress=uselessOverride)
+add_test(cppcheck cppcheck --enable=all -USCHEMA_DIR --check-level=exhaustive --error-exitcode=2 --inline-suppr --library=qt -I${CMAKE_SOURCE_DIR} -i${CMAKE_SOURCE_DIR}/tests/utils/qmain.cpp -i${CMAKE_SOURCE_DIR}/tests/gmock ${CMAKE_SOURCE_DIR}/src ${CMAKE_SOURCE_DIR}/tests --suppress=missingIncludeSystem --suppress=uninitDerivedMemberVar --suppress=unmatchedSuppression --suppress=constParameter --suppress=constParameterCallback --suppress=unusedFunction --suppress=uselessOverride)
 
 add_subdirectory (unit)