Merge branch 'ps/git-repack-doc-fixes' into maint-2.42

Doc updates.

* ps/git-repack-doc-fixes:
  doc/git-repack: don't mention nonexistent "--unpacked" option
  doc/git-repack: fix syntax for `-g` shorthand option

Author: gitster

Documentation/git-repack.txt

@@ -186,7 +186,7 @@ depth is 4095.
 	Pass the `--delta-islands` option to `git-pack-objects`, see
 	linkgit:git-pack-objects[1].
 
--g=<factor>::
+-g<factor>::
 --geometric=<factor>::
 	Arrange resulting pack structure so that each successive pack
 	contains at least `<factor>` times the number of objects as the
@@ -203,11 +203,8 @@ uniquely by the set of packs being "rolled-up"; in other words, the
 packs determined to need to be combined in order to restore a geometric
 progression.
 +
-When `--unpacked` is specified, loose objects are implicitly included in
-this "roll-up", without respect to their reachability. This is subject
-to change in the future. This option (implying a drastically different
-repack mode) is not guaranteed to work with all other combinations of
-option to `git repack`.
+Loose objects are implicitly included in this "roll-up", without respect to
+their reachability. This is subject to change in the future.
 +
 When writing a multi-pack bitmap, `git repack` selects the largest resulting
 pack as the preferred pack for object selection by the MIDX (see