tests: avoid spurious test failure with newer xfsprogs

* tests/t4100-dvh-partition-limits.sh: Use mkfs.xfs' -f (force)
option.  It is required at least for xfsprogs-3.1.0.

diff --git a/tests/t4100-dvh-partition-limits.sh b/tests/t4100-dvh-partition-limits.sh
index 01e3078..bf269e7 100755 (executable)
--- a/tests/t4100-dvh-partition-limits.sh
+++ b/tests/t4100-dvh-partition-limits.sh
@@ -37,7 +37,7 @@ test_expect_success \
     'create an XFS file system' \
     '
     dd if=/dev/zero of=$fs bs=1MB count=2 seek=20 &&
-    mkfs.xfs -q $fs &&
+    mkfs.xfs -f -q $fs &&
     mkdir "$mp"
 
     '