-# "APT::Archives::MaxSize",
-# - Set maximum size of the cache in MB (0=disable). If the cache
-# is bigger, cached package files are deleted until the size
-# requirement is met (the biggest packages will be deleted
-# first).
-#
-# "APT::Archives::MinAge"
-# - Set minimum age of a package file. If a file is younger it
-# will not be deleted (0=disable). Usefull to prevent races
-# and to keep backups of the packages for emergency.
-#
+# APT::Periodic::Verbose "0";
+# - Send report mail to root
+# 0: no report (or null string)
+# 1: progress report (actually any string)
+# 2: + command outputs (remove -qq, remove 2>/dev/null, add -d)
+# 3: + trace on