Close #5268.

Closes #2552.

The git:// transport is completely unauthenticated. An attacker on the local or upstream network can easily man-in-the-middle an oh-my-zsh update and get remote code execution on your system. Only the https:// git transport should be used.

If @{u} is not defined, git rev-list will give an error; redirect
to stderr the error and deal with this case in what follows.

See https://bugs.debian.org/871816

Fixes #6592

* Check for  extension, and exit if not found. Addresses #6036

* Fix styles in rkj-repos.theme

[emotty] fix typo that resulted in math error

* The display_emotty function show the name of the displayed emotty set

* Unless an emotty set was given show the emotty set configured
  in $emotty_set

see http://www.zsh.org/mla/workers/2015/msg03259.html

* Added trizen to the archlinux plugin

trizen is the recomended solution for using the Arch User Repository.
both yaourt and pacaur have some issues.

Signed-off by: Arthur Brainville (Ybalrid) <ybalrid@ybalrid.info>

* Add trizen aliases to the readme

Also fixed inconsistency in formatting on readme file.
(also added myself in the contributor list)

The avit theme's _git_time_since_commit function was running git twice.
Reduce it with a single call to `git log`, checking the exit code for
success.

Co-authored-by: dalu <2694548+dalu@users.noreply.github.com>

Co-authored-by: Maxime AURIAU <maxime.auriau@dnd.fr>

Said gem instead of vagrant

Added support for 'showmigrations' django command.

logs doesn't have "pods" parameter