algorithm used by 'git gc --aggressive'. This defaults
to 10.
+gc.auto::
+ When there are approximately more than this many loose
+ objects in the repository, `git gc --auto` will pack them.
+ Some Porcelain commands use this command to perform a
+ light-weight garbage collection from time to time. Setting
+ this to 0 disables it.
+
+gc.autopacklimit::
+ When there are more than this many packs that are not
+ marked with `*.keep` file in the repository, `git gc
+ --auto` consolidates them into one larger pack. Setting
+ this to 0 disables this.
+
gc.packrefs::
`git gc` does not run `git pack-refs` in a bare repository by
default so that older dumb-transport clients can still fetch