Respect review comment

Author: ClausKlein

include/beman/iterator_interface/CMakeLists.txt

@@ -14,8 +14,8 @@ target_sources(
     ${PROJECT_BINARY_DIR}/include
     ${PROJECT_SOURCE_DIR}/include
     FILES
-    ${CMAKE_CURRENT_SOURCE_DIR}/iterator_interface.hpp
-    ${CMAKE_CURRENT_SOURCE_DIR}/iterator_interface_access.hpp
-    ${CMAKE_CURRENT_SOURCE_DIR}/detail/stl_interfaces/config.hpp
-    ${CMAKE_CURRENT_SOURCE_DIR}/detail/stl_interfaces/fwd.hpp
-    ${CMAKE_CURRENT_SOURCE_DIR}/detail/stl_interfaces/iterator_interface.hpp)
+    iterator_interface.hpp
+    iterator_interface_access.hpp
+    detail/stl_interfaces/config.hpp
+    detail/stl_interfaces/fwd.hpp
+    detail/stl_interfaces/iterator_interface.hpp)