tests: shell: netns/0003many_0: Fix cleanup after error

If rule set applying failed, this would leave a stray netns in place.

Interestingly, this situation led to other, seemingly unrelated
testcases to fail with spurious errors, e.g. sets/0015rulesetflush_0:

| $ ./run-tests.sh testcases/sets/0015rulesetflush_0
| I: using nft binary ../../src/nft
|
| W: [FAILED]	testcases/sets/0015rulesetflush_0: expected 0 but got 1
| /tmp/tmp.BY7cuUYL8f:5:1-2: Error: Could not process rule: Operation not supported
| table inet filter {
| ^^
| /tmp/tmp.BY7cuUYL8f:9:1-2: Error: Could not process rule: No such file or directory
| add element inet filter blacklist_v4 {
| ^^
| /tmp/tmp.BY7cuUYL8f:5:1-2: Error: Could not process rule: Operation not supported
| table inet filter {
| ^^
| /tmp/tmp.BY7cuUYL8f:9:1-2: Error: Could not process rule: No such file or directory
| add element inet filter blacklist_v4 {
| ^^
|
| I: results: [OK] 0 [FAILED] 1 [TOTAL] 1
|
| $ ip netns list
| 1_0003many_0
| $ ip netns del 1_0003many_0
|
| $ ./run-tests.sh testcases/sets/0015rulesetflush_0
| I: using nft binary ../../src/nft
|
| I: [OK]		testcases/sets/0015rulesetflush_0
|
| I: results: [OK] 1 [FAILED] 0 [TOTAL] 1

Signed-off-by: Phil Sutter <phil@nwl.cc>
Acked-by: Arturo Borrero Gonzalez <arturo@debian.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

0 files changed, 0 insertions, 0 deletions