[nft PATCH] tests/shell: Restore testcases/sets/0036add_set_element_expiration_0

[Phil Sutter <phil@nwl.cc>]

This reverts both commits 46b54fdcf266d3d631ffb6102067825d7672db46 and
0e258556f7f3da35deeb6d5cfdec51eafc7db80d.

With both applied, the test succeeded *only* if 'nft monitor' was
running in background, which is equivalent to the original problem
(where the test succeeded only if *no* 'nft monitor' was running).

The test merely exposed a kernel bug, so in fact it is correct.

Fixes: 46b54fdcf266d ("Revert "monitor: do not print generation ID with --echo"")
Signed-off-by: Phil Sutter <phil@nwl.cc>
---
 tests/shell/testcases/sets/0036add_set_element_expiration_0 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/shell/testcases/sets/0036add_set_element_expiration_0 b/tests/shell/testcases/sets/0036add_set_element_expiration_0
index 7b2e39a3f0406..51ed0f2c1b3e8 100755
--- a/tests/shell/testcases/sets/0036add_set_element_expiration_0
+++ b/tests/shell/testcases/sets/0036add_set_element_expiration_0
@@ -6,7 +6,7 @@ RULESET="add table ip x
 add set ip x y { type ipv4_addr; flags dynamic,timeout; } 
 add element ip x y { 1.1.1.1 timeout 30s expires 15s }"
 
-test_output=$($NFT -e -f - <<< "$RULESET" 2>&1 | head -n -1)
+test_output=$($NFT -e -f - <<< "$RULESET" 2>&1)
 
 if [ "$test_output" != "$RULESET" ] ; then
 	$DIFF -u <(echo "$test_output") <(echo "$RULESET")
-- 
2.28.0