+# -C clear all phases
+# -n dry run
+# -a all phases
+# default is failed packages, orphaned elf, vacuum
+#
+# phases
+# -cC remove command history by date
+# -dD remove dry run
+# -eE remove orphaned elf
+# -fF remove failed
+# -hH fix file content hash
+# -hH remove install history by date
+# -lL remove old logs, given by date
+# -nN remove acked notes
+# -oO remove outdated packages, unless preserved
+# -pP remove history for removed packages
+# -rR remove orphaned rows in files table packagefiles, notes, scripts, ...
+# -hH remove all file content that is not scripts or configs
+# -rR remove removed packages, unless preserved
+# -vV compactify the database file
+