smoketest: T9316: match VRF process names by prefix, not equality

test_08_dyndns_vrf started failing after the conversion to get_vrf_pids():

  AssertionError: 'ddclient' not found in ['ddclient - slee']

"ip vrf pids" prints the kernel comm, which is capped at 15 characters and
follows a process rewriting its own title - ddclient advertises its poll
state as "ddclient - sleeping for 300 seconds". Comparing the name column
for equality is therefore too strict.

Add verify_process_in_vrf() to the test shim, matching the name column by
prefix and reporting the VRF's process list on failure, and use it for all
the name based probes. Matching stays confined to the name column, so a
process name still cannot be satisfied by the PID column.

The PID based checks in base_interfaces_test.py are unaffected - they
compare integers, which a process title does not change.

0 files changed, 0 insertions, 0 deletions