-Copies a suitable document name into the supplied {\it name} buffer. The default
-function uses the title, or if there is no title, uses the filename; or if no
-filename, the string {\bf unnamed}.
+Return the document name suitable to be shown to the user. The default
+implementation uses the document title, if any, of the name part of the
+document filename if it was set or, otherwise, the string {\bf unnamed}.