Fix typo in t4008 test title

diff --git a/t/t4008-diff-break-rewrite.sh b/t/t4008-diff-break-rewrite.sh
index 5836e3a899d62c3c86482ea254eb53c015a52823..1287d2ad175fffe342386eaf1c04bc8d26fd72f4 100755 (executable)
--- a/t/t4008-diff-break-rewrite.sh
+++ b/t/t4008-diff-break-rewrite.sh
@@ -119,7 +119,7 @@ test_expect_success \
     'compare_diff_raw expected current'
 
 test_expect_success \
-    'run diff with -B' \
+    'run diff with -B -M' \
     'git diff-index -B -M "$tree" >current'
 
 # This should not mistake file0 as the copy source of new file1