Places a comment above key
from group_name
.
If key
is null then comment
will be written above group_name
. If
both key
and group_name
are null, then comment
will be written
above the first group in the file.
Note that this function prepends a '#' comment marker to each line of comment
.
this |
a KeyFile |
group_name |
a group name, or null |
key |
a key |
comment |
a comment |
true if the comment was written, false otherwise |