The very useful CLI flag --quiet is undocumented.
Should be documented.
CC: @eggplantzzz
Hmm, actually it looks like this is documented for the compile command. What command were you using it with @yxliang01? Was it truffle test?
Yes truffle test @eggplantzzz
So we decided to add a new flag for truffle test, the --runner-output-only option. This will suppress all output except for the runner output (see PR above).
The option mentioned above is now a feature as of v5.0.44.
Thanks! @eggplantzzz