fix: silence stderr when fetching a command from the Procfile
fix: silence stderr when fetching a command from the Procfile

When deploying, if the procfile-get-command fails for a given process, this causes an error to output to stderr. We instead silence this as the error isn't important.

dokku/dokku,claytonbrown/dokku,dokku/dokku,claytonbrown/dokku,claytonbrown/dokku,dokku/dokku,claytonbrown/dokku,dokku/dokku,dokku/dokku,dokku/dokku,dokku/dokku,claytonbrown/dokku,claytonbrown/dokku,claytonbrown/dokku,dokku/dokku,claytonbrown/dokku