History: jj naming

[arxanas]

Not sure if this was explicitly written anywhere, so I thought I'd jot it down? @martinvonz can confirm.

• jj was originally decided as a command because it's easy to type and not taken by other commands, and the name was decided later.
• "Jujube" was the original name, as a backformation as a word with two successive js.
  • The Discord icon is a Jujube to this day.
• Many people are not familiar with the word/fruit "jujube", and there were multiple reports of people seeing a presentation and saying "I wanted to try out that new version control system, but I forgot what it was called!", which is pretty bad when you're trying to have people adopt your new project.

There's simply not a lot of words that have two successive js. For example, on my system (but there are certainly more options than this):

$ egrep '.*j.*j.*' /usr/share/dict/words
Ljubljana
Ljubljana's
jejune
jiujitsu
jiujitsu's
jujitsu
jujitsu's
jujube
jujube's
jujubes
jujutsu
jujutsu's