[PATCH] tests/qemu-iotests: Fix check for existing file in _require_disk_usage()

[Thomas Huth]

From: Thomas Huth <th...@redhat.com>

Looks like the "$" has been forgotten here to get the contents of
the FILENAME variable.

Fixes: c49dda7254d ("iotests: Filter out ZFS in several tests")
Signed-off-by: Thomas Huth <th...@redhat.com>
---
 tests/qemu-iotests/common.rc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/qemu-iotests/common.rc b/tests/qemu-iotests/common.rc
index 10d83d8361b..c0f8f0f8dfa 100644
--- a/tests/qemu-iotests/common.rc
+++ b/tests/qemu-iotests/common.rc
@@ -1008,7 +1008,7 @@ _require_disk_usage()
     else
         FILENAME="$TEST_IMG_FILE"
     fi
-    if [ -e "FILENAME" ]; then
+    if [ -e "$FILENAME" ]; then
         echo "unwilling to overwrite existing file"
         exit 1
     fi
-- 
2.52.0