Fixup: do not print the most 'interesting' module list if there are fewer than...

Fixup: do not print the most 'interesting' module list if there are fewer than 2 modules, in which case it is redundant information.
Fixup for: fa8cd471
2 jobs for build-failure-debug-tips in 1 minute and 4 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Test
failed #15315
smoke-test

00:01:04

passed #15314
unit-test

00:00:31

 
Name Stage Failure
failed
smoke-test Test
  Failed test:  1
Non-zero exit status: 2
Parse errors: No plan found in TAP output
t/smoke/install-and-run.t (Wstat: 65280 Tests: 5 Failed: 0)
Non-zero exit status: 255
Parse errors: No plan found in TAP output
Files=9, Tests=68, 8 wallclock secs ( 0.10 usr 0.01 sys + 5.78 cusr 1.33 csys = 7.22 CPU)
Result: FAIL
ERROR: Job failed: exit code 1