Remove carriage return characters

These pesky ^M characters can be seen when using Vim every so often

Vim will add these if you created a file on Windows, and you try to open it on a *nix machine. Apparently you can avoid this entirely with some extra configuration, but if it happens, just ente the following command:

:s/^M$//

(press CTRL+V and CTRL+M to enter the ^M thingie)