test-lib: add in-shell "env" replacement

diff --git a/t/t2102-update-index-symlinks.sh b/t/t2102-update-index-symlinks.sh
index 4d0d0a35156ee1a7604f0ea719e93d3f765a2f91..22f2c730ae8dbf995605e9134eeb2a5bc84065db 100755 (executable)
--- a/t/t2102-update-index-symlinks.sh
+++ b/t/t2102-update-index-symlinks.sh
@@ -23,7 +23,7 @@ git update-index symlink'
 
 test_expect_success \
 'the index entry must still be a symbolic link' '
-case "`git ls-files --stage --cached symlink`" in
+case "$(git ls-files --stage --cached symlink)" in
 120000" "*symlink) echo pass;;
 *) echo fail; git ls-files --stage --cached symlink; (exit 1);;
 esac'