Cucumber - How configure it to use "--format pretty" as default?

I found that this message:

Using the default profile... All but one formatter must use --out, only one can print to each stream (or STDOUT) (RuntimeError)

is related to a cucumber bug, like posted on this site

My workaround was edit config/cucumber.yml and left it like this:

std_opts = "--format rerun --out rerun.txt --strict --tags ~@wip"

%>

.....

default: <%= std_opts %> -f pretty features

Now it worked. I think this is cloudy for me, and maybe some more comments on this (and maybe another) 'bug' would be nice. Also, another useful settings would be nice.