File Commands
-------------
`r'
Re-read the init file (`gnus-init-file', which defaults to
`~/.gnus') (`gnus-group-read-init-file').
`s'
Save the `.newsrc.eld' file (and `.newsrc' if wanted)
(`gnus-group-save-newsrc'). If given a prefix, force saving the
file(s) whether Gnus thinks it is necessary or not.