git-update: Do not overwrite the repo variable

The repo variable is already used to store the pygit2.Repository.

Fixes a regression introduced in d273ee5e

 (Use the official provider list
to detect duplicates, 2016-05-17).
Signed-off-by: Lukas Fleischer <lfleischer@archlinux.org>

git-interface/git-update.py

@@ -373,8 +373,7 @@ for pkgname in srcinfo.utils.get_package_names(metadata):
     if pkgname in blacklist:
         warn_or_die('package is blacklisted: {:s}'.format(pkgname))
     if pkgname in providers:
-        repo = providers[pkgname]
-        warn_or_die('package already provided by [{:s}]: {:s}'.format(repo, pkgname))
+        warn_or_die('package already provided by [{:s}]: {:s}'.format(providers[pkgname], pkgname))
 
     cur = conn.execute("SELECT COUNT(*) FROM Packages WHERE Name = ? AND " +
                        "PackageBaseID <> ?", [pkgname, pkgbase_id])

git-interface/test/t0003-update.sh

@@ -396,7 +396,7 @@ test_expect_success 'Pushing a package already in the official repositories.' '
 	test_cmp expected actual
 '
 
-test_expect_failure 'Pushing a package already in the official repositories as Trusted User.' '
+test_expect_success 'Pushing a package already in the official repositories as Trusted User.' '
 	old=$(git -C aur.git rev-parse HEAD) &&
 	test_when_finished "git -C aur.git reset --hard $old" &&
 	echo "pkgname = official" >>aur.git/.SRCINFO &&