[configs/releng] Replace wget with pacman for make_core_repo()

Fix: FS#18959 - download_repos.sh does not report tcp timeouts and such

* Always use pacman cache. Previously pacman cache was used if package
  already exists on it, now is also used to download pkg on it.
  Finally copy all packages from cache with cp and make core.db.
* Using pacman, we can sure that package integrity is right.
* Always get a [core] package, in case of [testing] enabled.
* Now works when mirror is: Server = file:// ;)

Signed-off-by: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>

0 files changed, 0 insertions, 0 deletions