Christian Hesse authored Sep 05, 2013 and Allan McRae committed Sep 18, 2013

If the server redirects from ${repo}.db to ${repo}.db.tar.gz pacman gets
this wrong: It saves to new filename and fails when accessing
${repo}.db.

We need the remote filename only when downloading remote files with
pacman's -U operation. This introduces a new field 'trust_remote_name'
to payload. If set pacman downloads to the filename given by the server.

The field trust_remote_name is set in alpm_fetch_pkgurl().

Fixes FS#36791 ([pacman] downloads to wrong filename with redirect).

[dave: remove redundant assignment leading to memory leak]

Signed-off-by: Allan McRae <allan@archlinux.org>