Logger default patterns

- names for all patterns
- define only once

corsika/detail/framework/core/Logging.inl

-/*
+/* -*-c++-*-
  * (c) Copyright 2020 CORSIKA Project, corsika-project@lists.kit.edu
  *
  * This software is distributed under the terms of the GNU General Public
@@ -21,15 +21,13 @@ namespace corsika {
     /*
      * The default pattern for CORSIKA8 loggers.
      */
-    std::string const default_pattern{"[%n:%^%-8l%$] %v"};
-
     inline auto set_default_level(level::level_enum const minlevel) -> void {
       spdlog::set_level(minlevel);
     }
 
     template <typename TLogger>
     inline auto add_source_info(TLogger& logger) -> void {
-      logger->set_pattern("[%n:%^%-8l%$(%s:%!:%#)] %v");
+      logger->set_pattern(source_pattern);
     }
 
     template <typename TLogger>
@@ -48,7 +46,7 @@ namespace corsika {
 
     // set the default C8 format
 #if (!defined(_GLIBCXX_USE_CXX11_ABI) || _GLIBCXX_USE_CXX11_ABI == 1)
-    logger->set_pattern(logging::default_pattern);
+    logger->set_pattern(default_pattern);
 #else
     // special case: gcc from the software collections devtoolset
     std::string dp(default_pattern);

corsika/framework/core/Logging.hpp

@@ -50,6 +50,7 @@ namespace corsika {
    * The default pattern for CORSIKA8 loggers.
    */
   const std::string default_pattern{"[%n:%^%-8l%$] %v"};
+  const std::string source_pattern{"[%n:%^%-8l%$(%s:%!:%#)] %v"};
 
   /**
    * Create a new C8-style logger.