Kconfig: help or ---help--- ?

From the http://kernel.org/doc/Documentation/kbuild/kconfig-language.txt

- help text: "help" or "---help---"   This defines a help text. The end of the help text is determined by   the indentation level, this means it ends at the first line which has   a smaller indentation than the first line of the help text.   "---help---" and "help" do not differ in behaviour, "---help---" is   used to help visually separate configuration logic from help within   the file as an aid to developers.