Having timeouts that are likely to fail incurs a penalty of waiting for
screen:expect() to fail, hence removing such small timeouts will speed
up the test on average.
Hope this will make people using feed_command less likely: this hides bugs.
Already found at least two:
1. msgpackparse() will show internal error: hash_add() in case of duplicate
keys, though it will still work correctly. Currently silenced.
2. ttimeoutlen was spelled incorrectly, resulting in option not being set when
expected. Test was still functioning somehow though. Currently fixed.
- Improve test reliability by only checking for a line with the string
we are interested in ("Interrupt").
- Try to avoid OOM by loading an existing big file instead of looping to
create one.
