Merge branch 'pw/add-p-recount'

When user edits the patch in "git add -p" and the user's editor is
set to strip trailing whitespaces indiscriminately, an empty line
that is unchanged in the patch would become completely empty
(instead of a line with a sole SP on it).  The code introduced in
Git 2.17 timeframe failed to parse such a patch, but now it learned
to notice the situation and cope with it.

* pw/add-p-recount:
  add -p: fix counting empty context lines in edited patches

1 files changed, 1 insertions, 1 deletions

diff --git a/git-add--interactive.perl b/git-add--interactive.perl
index 36f38ced90..20eb81cc92 100755
--- a/git-add--interactive.perl
+++ b/git-add--interactive.perl
@@ -1062,7 +1062,7 @@ sub recount_edited_hunk {
 			$o_cnt++;
 		} elsif ($mode eq '+') {
 			$n_cnt++;
-		} elsif ($mode eq ' ') {
+		} elsif ($mode eq ' ' or $mode eq "\n") {
 			$o_cnt++;
 			$n_cnt++;
 		}