+ - No longer use a default built-in value for the "IncludeDir" directive when
+ a configuration file was explicitly specified on the command line using
+ "--config"/"-f": This way no default include directory is scanned when a
+ possibly non-default configuration file is used which (intentionally) did
+ not specify an "IncludeDir" directive. So now you can use "-f /dev/null"
+ for checking all built-in defaults, regardless of any local configuration
+ files in the default drop-in directory (which would have been read in
+ until this change).