~/.rvm/hooks/after_use_current generates error

[saizai]

https://github.com/rvm/rvm/blob/426990b6a8e705302b03e2c77972066b90f2b9d4/hooks/after_use_current#L17

$ cd some_rails_dir
$ cd some_random_dir
usage: 'rvm alias [action] [alias_name] [ruby_string]'

[gschmidt-msft]

I'm getting this issue too.