Eighth batch for 2.20

Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/RelNotes/2.20.0.txt

@@ -145,6 +145,10 @@ UI, Workflows & Features
  * "git mergetool" learned to take the "--[no-]gui" option, just like
    "git difftool" does.
 
+ * "git rebase -i" learned a new insn, 'break', that the user can
+   insert in the to-do list.  Upon hitting it, the command returns
+   control back to the user.
+
 
 Performance, Internal Implementation, Development Support etc.
 
@@ -262,6 +266,8 @@ Performance, Internal Implementation, Development Support etc.
  * Some tests have been reorganized and renamed; "ls t/" now gives a
    better overview of what is tested for these scripts than before.
 
+ * "git rebase" and "git rebase -i" have been reimplemented in C.
+
 
 Fixes since v2.19
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