On Arch, vi is the original Bill Joy vi.
$ vi --version
vi: illegal option -- -
Usage: vi [- | -s] [-l] [-L] [-R] [-r [file]] [-t tag]
[-v] [-V] [-w size] [+cmd | -c cmd] file...
$ pacman -Qi vi
Name : vi
Version : 1:070224-2
Description : The original ex/vi text editor
Architecture : x86_64
URL : http://ex-vi.sourceforge.net/
Licenses : custom:ex
Groups : base
Provides : None
Depends On : ncurses
Optional Deps : s-nail: used by the preserve command for notification [installed]
Required By : None
Optional For : None
Conflicts With : None
Replaces : None
Installed Size : 290.00 KiB
Packager : Evangelos Foutras <evangelos@foutrelis.com>
Build Date : Sun 06 Sep 2015 03:34:15 PM EDT
Install Date : Fri 18 Sep 2015 10:33:33 PM EDT
Install Reason : Explicitly installed
Install Script : No
Validated By : Signature
(ok, I'm not actually on Arch, but I'm downstream of Arch, and that package is directly from Arch)