mislav/poignant-guide — pull request #3 by ericmathison (2012-12-25 11:54:37+00:00)
Title: Change ri option from -c to -l

`-c` was removed from ruby source code in Sept. 2008. The `-l` option serves
the same purpose (listing all class names).

To check the `-l` option, make sure to use `ri --help` instead of the man page for `ri` as the man page does not show this option.