Normaly we only pass --config to pacman if the user specifies it on the
command line. Otherwise we let pacman use it's default config location.
If the user has changed pacmanconf in Yay's config file then this could
cause a miss match between the config we use to init alpm and the config
pacman is using.
As it turns out, the times you need root also tend to be the time you
need to manipulate the database. So the needWait() function can be
removed and repllaced by needRoot()
* Wait for db.lck to become available before starting a db operation
* Fix err!=nil issues and avoid spamming users
* Remove redundant cases
* Remove return
