Re: diff-mode misinterprets empty lines.

[Glenn Morris]

In an effort to clear FOR-RELEASE, here is a simple-minded attempt to
deal with this. It seems to fix the original problem at least.


*** diff-mode.el.~1.122.~       2007-10-21 13:00:12.000000000 -0700
--- diff-mode.el        2008-01-05 15:58:41.000000000 -0800
***************
*** 403,409 ****
    (setq style (diff-hunk-style style))
    (let ((end (and (re-search-forward (case style
                                       ;; A `unified' header is ambiguous.
!                                      (unified (concat "^[^-+# \\]\\|"
                                                        diff-file-header-re))
                                       (context "^[^-+#! \\]")
                                       (normal "^[^<>#\\]")
--- 403,409 ----
    (setq style (diff-hunk-style style))
    (let ((end (and (re-search-forward (case style
                                       ;; A `unified' header is ambiguous.
!                                      (unified (concat "^[^-+# \\\n]\\|"
                                                        diff-file-header-re))
                                       (context "^[^-+#! \\]")
                                       (normal "^[^<>#\\]")