If true, fetch will automatically behave as if the `--prune`
option was given on the command line. See also `remote.<name>.prune`.
+fetch.output::
+ Control how ref update status is printed. Valid values are
+ `full` and `compact`. Default value is `full`. See section
+ OUTPUT in linkgit:git-fetch[1] for detail.
+
format.attach::
Enable multipart/mixed attachments as the default for
'format-patch'. The value can also be a double quoted string