util/socketpair_ersatz test requires configured network

When I use unshare -r -n ./src/test/test to try to reproduce legacy/trac#30409 (moved), I get this error:

util/socketpair_ersatz: [forking] 
  FAIL src/test/test_util.c:5402: assert(0 OP_EQ socketpair_result): 0 vs -101
  [socketpair_ersatz FAILED]

changed milestone to %Tor: 0.4.1.x-final in legacy/trac

Trac:
Parent Ticket: legacy/trac#30409 (moved)

added 041-should in Legacy / Trac actualpoints::.1 in Legacy / Trac asn-merge in Legacy / Trac component::core tor/tor in Legacy / Trac milestone::Tor: 0.4.1.x-final in Legacy / Trac owner::nickm in Legacy / Trac parent::30409 in Legacy / Trac priority::medium in Legacy / Trac resolution::fixed in Legacy / Trac reviewer::dgoulet in Legacy / Trac severity::normal in Legacy / Trac status::closed in Legacy / Trac tor-ci in Legacy / Trac tor-tests in Legacy / Trac type::defect in Legacy / Trac labels

Trac:
Owner: < default nickm to nickm

See branch bug30804 with PR at https://github.com/torproject/tor/pull/1088 .

I vote "no backport" on this, since it only occurs when running the tests with the network disabled.

Trac:
Actualpoints: N/A to .1

Trac:
Status: assigned to needs_review

LGTM. Agree with no backport.

Trac:
Reviewer: N/A to dgoulet
Status: needs_review to merge_ready
Keywords: N/A deleted, asn-merge added

Merged to master. No backport.

Trac:
Resolution: N/A to fixed
Status: merge_ready to closed

closed

added 48m of time spent

mentioned in issue legacy/trac#30409 (moved)

moved from legacy/trac#30804 (moved)

added Bug label and removed 1 deleted label

added CI Tests labels and removed 1 deleted label