Use new function name in buildinfo -p

[kpcyrd]

This changes the output of this call

/usr/bin/buildinfo: line 191: select_archive_link: command not found
/usr/bin/buildinfo: line 191: select_archive_link: command not found
/usr/bin/buildinfo: line 191: select_archive_link: command not found
[...]

to

https://archive.archlinux.org/packages/a/acl/acl-2.3.0-1-x86_64.pkg.tar.
https://archive.archlinux.org/packages/a/archlinux-keyring/archlinux-keyring-20210110-1-any.pkg.tar.
https://archive.archlinux.org/packages/a/attr/attr-2.5.0-1-x86_64.pkg.tar.
[...]

note that the extension is still missing, because we can't know that from the buildinfo file.