-kept in addition to any files listed in "Things-to-keep:". For an
-example of its use, see devo/gcc/config/.Sanitize.
+kept in addition to any files listed in "Things-to-keep:". If it sets
+"lose_these_too", those files and/or directories will be removed in
+addition to any files listed in "Things-to-lose:". For an example of
+its use, see devo/gcc/config/.Sanitize.