Do not count git markers as "deleted lines"

* lisp/vc/diff-mode.el (diff-fixup-modifs): Skip "end of patch"
markers that `git-format-patch` leaves around (bug#50761).

diff --git a/lisp/vc/diff-mode.el b/lisp/vc/diff-mode.el
index 0852f8790e96ea5ec38da4f17577e06fe2e28e34..057ffcd06e38b3661e2dd9dcc04ba569ce2a9efe 100644 (file)
--- a/lisp/vc/diff-mode.el
+++ b/lisp/vc/diff-mode.el
@@ -1355,7 +1355,11 @@ else cover the whole buffer."
              (pcase (char-after)
                (?\s (cl-incf space))
                (?+ (cl-incf plus))
-               (?- (cl-incf minus))
+               (?- (unless ;; In git format-patch "^-- $" signifies
+                            ;; the end of the patch.
+                       (and (eq diff-buffer-type 'git)
+                            (looking-at "^-- $"))
+                     (cl-incf minus)))
                (?! (cl-incf bang))
                ((or ?\\ ?#) nil)
                (?\n (if diff-valid-unified-empty-line