glib:key-file-comment (keyfile group key)

keyfile -- a g:key-file instance
group -- a string for the group name
key -- a string for the key name
value -- a string for the comment

The g:key-file-comment retrieves a comment above key from group. If key is nil then the comment will be read from above group. If both key and group are nil, then the comment will be read from above the first group in the file.

The (setf g:key-file-comment) function places a comment above key from group. If key is nil then the comment will be written above group. If both key and group are nil, then the comment will be written above the first group in the file.