rebase: clarify the OPT_CMDMODE incompatibilities

--edit-todo was documented as being incompatible with any of the options
for the apply backend.  However, it is also incompatible with any of the
options for the merge backend, and is incompatible with any options that
are not backend specific as well.  The same can be said for --continue,
--skip, --abort, --quit, etc.

This is already somewhat implicitly covered by the synopsis, but since
"[<options>]" in the first two variants are vague it might be easy to
miss this.  That might not be a big deal, but since the rebase manpage
has to spend so much verbiage about incompatibility of options, making
a separate section for these options that are incompatible with
everything else seems clearer.  Do that, and remove the needless
inclusion of --edit-todo in the explicit incompatibility list.

Signed-off-by: Elijah Newren <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: newren

Documentation/git-rebase.txt

@@ -208,6 +208,39 @@ Alternatively, you can undo the 'git rebase' with
 
     git rebase --abort
 
+MODE OPTIONS
+------------
+
+The options in this section cannot be used with any other option,
+including not with each other:
+
+--continue::
+	Restart the rebasing process after having resolved a merge conflict.
+
+--skip::
+	Restart the rebasing process by skipping the current patch.
+
+--abort::
+	Abort the rebase operation and reset HEAD to the original
+	branch. If `<branch>` was provided when the rebase operation was
+	started, then `HEAD` will be reset to `<branch>`. Otherwise `HEAD`
+	will be reset to where it was when the rebase operation was
+	started.
+
+--quit::
+	Abort the rebase operation but `HEAD` is not reset back to the
+	original branch. The index and working tree are also left
+	unchanged as a result. If a temporary stash entry was created
+	using `--autostash`, it will be saved to the stash list.
+
+--edit-todo::
+	Edit the todo list during an interactive rebase.
+
+--show-current-patch::
+	Show the current patch in an interactive rebase or when rebase
+	is stopped because of conflicts. This is the equivalent of
+	`git show REBASE_HEAD`.
+
 OPTIONS
 -------
 --onto <newbase>::
@@ -249,22 +282,6 @@ See also INCOMPATIBLE OPTIONS below.
 <branch>::
 	Working branch; defaults to `HEAD`.
 
---continue::
-	Restart the rebasing process after having resolved a merge conflict.
-
---abort::
-	Abort the rebase operation and reset HEAD to the original
-	branch. If `<branch>` was provided when the rebase operation was
-	started, then `HEAD` will be reset to `<branch>`. Otherwise `HEAD`
-	will be reset to where it was when the rebase operation was
-	started.
-
---quit::
-	Abort the rebase operation but `HEAD` is not reset back to the
-	original branch. The index and working tree are also left
-	unchanged as a result. If a temporary stash entry was created
-	using `--autostash`, it will be saved to the stash list.
-
 --apply::
 	Use applying strategies to rebase (calling `git-am`
 	internally).  This option may become a no-op in the future
@@ -345,17 +362,6 @@ See also INCOMPATIBLE OPTIONS below.
 +
 See also INCOMPATIBLE OPTIONS below.
 
---skip::
-	Restart the rebasing process by skipping the current patch.
-
---edit-todo::
-	Edit the todo list during an interactive rebase.
-
---show-current-patch::
-	Show the current patch in an interactive rebase or when rebase
-	is stopped because of conflicts. This is the equivalent of
-	`git show REBASE_HEAD`.
-
 -m::
 --merge::
 	Using merging strategies to rebase (default).
@@ -651,7 +657,6 @@ are incompatible with the following options:
  * --no-keep-empty
  * --empty=
  * --[no-]reapply-cherry-picks when used without --keep-base
- * --edit-todo
  * --update-refs
  * --root when used without --onto