Tim Peters:

Again due to the duplicate copies of test_support, the checked-in
"expected output" file actually contains verbose-mode output.

Lib/test/output/test_poll

@@ -14,30 +14,4 @@ Running poll test 1
  This is a test.
 Poll test 1 complete
 Running poll test 2
-timeout = 0
-timeout = 1000
-'testing...\012'
-timeout = 2000
-'testing...\012'
-timeout = 4000
-'testing...\012'
-timeout = 8000
-'testing...\012'
-timeout = 16000
-'testing...\012'
-timeout = -1
-'testing...\012'
-timeout = -1
-'testing...\012'
-timeout = -1
-'testing...\012'
-timeout = -1
-'testing...\012'
-timeout = -1
-'testing...\012'
-timeout = -1
-timeout = -1
-timeout = -1
-timeout = -1
-timeout = -1
 Poll test 2 complete