Merge branch 'jc/diff-test-updates' into th/diff

* jc/diff-test-updates:
  t4013 test updates for new output code.

t/t4013/diff.diff-tree_--cc_--patch-with-stat_--summary_master

@@ -4,7 +4,6 @@ $ git diff-tree --cc --patch-with-stat --summary master
  file0   |    3 +++
  2 files changed, 5 insertions(+), 0 deletions(-)
 
-
 diff --cc dir/sub
 index cead32e,7289e35..992913c
 --- a/dir/sub

t/t4013/diff.diff-tree_--pretty=oneline_--root_--patch-with-stat_initial

@@ -1,6 +1,5 @@
 $ git diff-tree --pretty=oneline --root --patch-with-stat initial
 444ac553ac7612cc88969031b02b3767fb8a353a Initial
----
  dir/sub |    2 ++
  file0   |    3 +++
  file2   |    3 +++

t/t4013/diff.log_--root_--cc_--patch-with-stat_--summary_master

@@ -5,12 +5,11 @@ Author: A U Thor <author@example.com>
 Date:   Mon Jun 26 00:04:00 2006 +0000
 
     Merge branch 'side'
----
+
  dir/sub |    2 ++
  file0   |    3 +++
  2 files changed, 5 insertions(+), 0 deletions(-)
 
-
 diff --cc dir/sub
 index cead32e,7289e35..992913c
 --- a/dir/sub

t/t4013/diff.log_--root_-c_--patch-with-stat_--summary_master

@@ -5,12 +5,11 @@ Author: A U Thor <author@example.com>
 Date:   Mon Jun 26 00:04:00 2006 +0000
 
     Merge branch 'side'
----
+
  dir/sub |    2 ++
  file0   |    3 +++
  2 files changed, 5 insertions(+), 0 deletions(-)
 
-
 diff --combined dir/sub
 index cead32e,7289e35..992913c
 --- a/dir/sub

t/t4013/diff.whatchanged_--root_--cc_--patch-with-stat_--summary_master

@@ -5,12 +5,11 @@ Author: A U Thor <author@example.com>
 Date:   Mon Jun 26 00:04:00 2006 +0000
 
     Merge branch 'side'
----
+
  dir/sub |    2 ++
  file0   |    3 +++
  2 files changed, 5 insertions(+), 0 deletions(-)
 
-
 diff --cc dir/sub
 index cead32e,7289e35..992913c
 --- a/dir/sub

t/t4013/diff.whatchanged_--root_-c_--patch-with-stat_--summary_master

@@ -5,12 +5,11 @@ Author: A U Thor <author@example.com>
 Date:   Mon Jun 26 00:04:00 2006 +0000
 
     Merge branch 'side'
----
+
  dir/sub |    2 ++
  file0   |    3 +++
  2 files changed, 5 insertions(+), 0 deletions(-)
 
-
 diff --combined dir/sub
 index cead32e,7289e35..992913c
 --- a/dir/sub