message: Drop const as well since some compilers warn that it's redundant
diff: @@ -66,7 +66,7 @@ CONFIG_SUPPORT_TYPE(rdcarray<rdcstr>);
  #define RDOC_DEBUG_CONFIG(type, name, defaultValue, description) \
  static ConfigVarRegistration<type> CONCAT(config, __LINE__)( \
  STRING_LITERAL(STRINGIZE(name)), defaultValue, true, STRING_LITERAL(description)); \
  - static const type name() { return defaultValue; }
  + static type name() { return defaultValue; }
  #else
  #define RDOC_DEBUG_CONFIG(type, name, defaultValue, description) \
  