apply: add t4137 for submodule updates

diff --git a/t/t4013-diff-various.sh b/t/t4013-diff-various.sh
index e77c09c37eede2f039610199ba8e3c45e94213d4..805b055c899e7c9f5653eb740572f67417c9dcb6 100755 (executable)
--- a/t/t4013-diff-various.sh
+++ b/t/t4013-diff-various.sh
@@ -107,14 +107,14 @@ test_expect_success setup '
 +*++ [initial] Initial
 EOF
 
-V=`git version | sed -e 's/^git version //' -e 's/\./\\./g'`
+V=$(git version | sed -e 's/^git version //' -e 's/\./\\./g')
 while read cmd
 do
        case "$cmd" in
        '' | '#'*) continue ;;
        esac
-       test=`echo "$cmd" | sed -e 's|[/ ][/ ]*|_|g'`
-       pfx=`printf "%04d" $test_count`
+       test=$(echo "$cmd" | sed -e 's|[/ ][/ ]*|_|g')
+       pfx=$(printf "%04d" $test_count)
        expect="$TEST_DIRECTORY/t4013/diff.$test"
        actual="$pfx-diff.$test"