Use correct grammar in diffstat summary line
"git diff --stat" and "git apply --stat" now learn to print the line
"%d files changed, %d insertions(+), %d deletions(-)" in singular form
whenever applicable. "0 insertions" and "0 deletions" are also omitted
unless they are both zero.
This matches how versions of "diffstat" that are not prehistoric produced
their output, and also makes this line translatable.
[jc: with help from Thomas Dickey in archaeology of "diffstat"]
[jc: squashed Jonathan's updates to illustrations in tutorials and a test]
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/t/t4013/diff.whatchanged_--patch-with-stat_--summary_master_--_dir_ b/t/t4013/diff.whatchanged_--patch-with-stat_--summary_master_--_dir_
index 6a467cc..16ae543 100644
--- a/t/t4013/diff.whatchanged_--patch-with-stat_--summary_master_--_dir_
+++ b/t/t4013/diff.whatchanged_--patch-with-stat_--summary_master_--_dir_
@@ -6,7 +6,7 @@
Side
---
dir/sub | 2 ++
- 1 files changed, 2 insertions(+), 0 deletions(-)
+ 1 file changed, 2 insertions(+)
diff --git a/dir/sub b/dir/sub
index 35d242b..7289e35 100644
@@ -25,7 +25,7 @@
Third
---
dir/sub | 2 ++
- 1 files changed, 2 insertions(+), 0 deletions(-)
+ 1 file changed, 2 insertions(+)
diff --git a/dir/sub b/dir/sub
index 8422d40..cead32e 100644
@@ -47,7 +47,7 @@
This is the second commit.
---
dir/sub | 2 ++
- 1 files changed, 2 insertions(+), 0 deletions(-)
+ 1 file changed, 2 insertions(+)
diff --git a/dir/sub b/dir/sub
index 35d242b..8422d40 100644