Correct outdated ini comment re *_filename.

fanficfare/defaults.ini

@@ -124,7 +124,7 @@ include_tocpage: true
 #website_encodings: auto, utf8, Windows-1252
 
 ## python string Template, string with ${title}, ${author} etc, same as titlepage_entries
-## Can include directories.  ${formatext} will be added if not in filename somewhere.
+## Can include directories.
 #output_filename: books/${title}-${siteabbrev}_${storyId}${formatext}
 #output_filename: books/${formatname}/${siteabbrev}/${authorId}/${title}-${siteabbrev}_${storyId}${formatext}
 output_filename: ${title}-${siteabbrev}_${storyId}${formatext}
@@ -140,7 +140,7 @@ make_directories: true
 ## put output (with output_filename) in a zip file zip_filename.
 zip_output: false
 
-## Can include directories.  .zip will be added if not in name somewhere
+## Can include directories.
 zip_filename: ${title}-${siteabbrev}_${storyId}${formatext}.zip
 
 ## Normally, try to make the filenames 'safe' by removing invalid