[PATCH 05 of 10 v5] ui: log time spent blocked on stdio

[timeless]

Simon Farnsworth wrote:
>> -  > uiblocked=echo "\$EVENT command \$OPT_COMMAND_DURATION ms"
>> +  > uiblocked=echo "\$EVENT stdio \$OPT_STDIO_BLOCKED ms command
>> \$OPT_COMMAND_DURATION ms"

For reference, what you've missed was this part.
The part below was fine, but here, you can clearly see it changed from
`command` to stdio`.

had the diff used a smaller -U value, it would have accepted the second change.
This happens to me all the time. I've been meaning to teach the test
harness to be smarter  about differences :/