tests: make sure MKE2FS_FIRST_META_BG is unset while running tests

If the developer has set the MKE2FS_FIRST_META_BG environment
variable, this can cause test failures.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>

diff --git a/tests/test_config b/tests/test_config
index 6789656..1872e5c 100644 (file)
--- a/tests/test_config
+++ b/tests/test_config
@@ -32,6 +32,7 @@ E2FSCK_CONFIG=/dev/null
 export E2FSCK_CONFIG
 MKE2FS_CONFIG=./mke2fs.conf
 export MKE2FS_CONFIG
+unset MKE2FS_FIRST_META_BG
 E2FSPROGS_SKIP_PROGRESS=yes
 export E2FSPROGS_SKIP_PROGRESS
 EXT2FS_NO_MTAB_OK=yes