chrisfsampaio/imsg — pull request #22 by m1foley (2014-02-14 05:59:40+00:00)
Title: Minor corrections for is_i?

- Rename `is_i` to more idiomatic `is_i?`
- Remove unnecessary `!!` in lieu of idiomatic truthy/falsey
- Simplify regex to eliminate +/-
- Change anchors `^` => `\A`, `$` => `\z` (`^`/`$` should almost never be used)