apply: split quoted filename handling into new function

diff --git a/t/t3020-ls-files-error-unmatch.sh b/t/t3020-ls-files-error-unmatch.sh
index af8c4121abfc28b7e289b39936df45bd5b82cf22..a7d8187169a36f708bd7dc39d97604dd9cc21565 100755 (executable)
--- a/t/t3020-ls-files-error-unmatch.sh
+++ b/t/t3020-ls-files-error-unmatch.sh
@@ -11,9 +11,11 @@ line.
 '
 . ./test-lib.sh
 
-touch foo bar
-git update-index --add foo bar
-git-commit -m "add foo bar"
+test_expect_success 'setup' '
+       touch foo bar &&
+       git update-index --add foo bar &&
+       git commit -m "add foo bar"
+'
 
 test_expect_success \
     'git ls-files --error-unmatch should fail with unmatched path.' \