+
+option "user-summary-sort" -
+#~~~~~~~~~~~~~~~~~~~~~~~~~~~
+"how to sort the user-summary"
+enum typestr="col_spec"
+values="name","uid","dir_count","file_count","size"
+default="size"
+optional
+details="
+ It is enough to specify the first letter of the column specifier,
+ e.g. \"--user-summary-sort f\" sorts by file count.
+"