Improve headers

src/core/system_parameters/CMakeLists.txt

@@ -1,4 +1,6 @@
-# Copyright (C) 2012-2019  (see AUTHORS file for a list of contributors)
+# Copyright (C) 2012-2020  (see AUTHORS file for a list of contributors)
+#
+# GNSS-SDR is a software-defined Global Navigation Satellite Systems receiver
 #
 # This file is part of GNSS-SDR.
 #
@@ -103,9 +105,9 @@ target_link_libraries(core_system_parameters
     PUBLIC
         Boost::date_time
         Boost::serialization
-        Glog::glog
     PRIVATE
         Gflags::gflags
+        Glog::glog
 )
 
 if(ENABLE_CLANG_TIDY)