Created by: nastasie-octavian
Move an improved version of the "while read -r ..." loop inside the build_mount_args function and remove the first for loop in the function.
In the while loop, the repo name and architecture in a server url are no longer replaced by sed with the $repo and $arch placeholder strings. When a local repo url is added to the cache_dirs array and later, when it is used to build --bind-ro args it represents a valid filesystem path. systemd-nspwan won't throw a "Failed to stat [...]" error anymore. An extra if was removed and more friendly variable named were used.
The first for loop was removed since the improved while loop now handles all the cases.