[GSoC][PATCH] t/t4113-apply-ending.sh: Modernize a test script

I cleaned up some old style in test script.

for example :

* old style:

    test_expect_success \
        'title' \
        'body line 1 &&
        body line 2'

  should become:

    test_expect_success 'title' '
        body line 1 &&
        body line 2
    '




Signed-off-by: Shuqi Liang <redacted>
---
Hi,I'm Shuqi Liang.a junior student majors in Computer Science at University of Western Ontario. 

This patch is the microproject I try to getting involved with the Git project.

I have read 'MyFirstContribution.txt', 'Hacking Git' and the book 《pro git》 ,and I know more about objects, references, packfile format, etc.
Over the coming period, I will delve into the source code and gain a deeper understanding and try to  contribute more meaningful patch to the community.

 t/t4113-apply-ending.sh | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/t/t4113-apply-ending.sh b/t/t4113-apply-ending.sh
index 66fa51591e..aa57895b22 100755
--- a/t/t4113-apply-ending.sh
+++ b/t/t4113-apply-ending.sh

@@ -24,13 +24,14 @@ echo 'a' >file
 echo 'b' >>file
 echo 'c' >>file
 
-test_expect_success setup \
-    'git update-index --add file'
-
+test_expect_success setup '
+    git update-index --add file
+'
 # test
 
-test_expect_success 'apply at the end' \
-    'test_must_fail git apply --index test-patch'
+test_expect_success 'apply at the end' '
+    test_must_fail git apply --index test-patch
+'
 
 cat >test-patch <<\EOF
 diff a/file b/file

@@ -47,7 +48,8 @@ b
 c'
 git update-index file
 
-test_expect_success 'apply at the beginning' \
-	'test_must_fail git apply --index test-patch'
+test_expect_success 'apply at the beginning' '
+    test_must_fail git apply --index test-patch
+'
 
 test_done

-- 
2.39.0