rsnapshot configuration option in addition to the defaults from rsnapshot and this module.
Note that tabs are required to separate option arguments, and directory names require trailing slashes.
The "extra" in the option name might be a little misleading right now, as it is required to get a functional configuration.
Declarations
Type
strings concatenated with "\n"Default
""Example
''
retains hourly 24
retain daily 365
backup /home/ localhost/
''