Need to ROT13? Use Vim!

Did you know Vim has a built-in shortcut to ROT13-encode the current line? Me neither! And I've been using Vim for 13 years! You can ROT13-encode the current line by typing g?? in Normal mode. I found out about this while reading :help g (2.4 Commands starting with 'g'). 1 Apparently, this feature has been in Vim since version 5.4, which came out in 1999. 2 For reference, Vim was first released in…