xbps-bin: multiple fixes to update packages.

* Fix 'autoupdate' target to look for new packages in ALL repos, not
  just the first one that has the package.
* Fix 'update' target to work correctly.

--HG--
extra : convert_revision : xtraeme%40gmail.com-20091016133157-asvkv5jb6i9q2ibe

bin/xbps-bin/main.c

@@ -130,6 +130,11 @@ main(int argc, char **argv)
 			goto out;
 		}
 	}
+	if ((rv = xbps_prepare_repolist_data()) != 0) {
+		printf("Couldn't initialized repository pool data (%s)\n",
+		    strerror(rv));
+		goto out;
+	}
 
 	if (strcasecmp(argv[0], "list") == 0) {
 		/* Lists packages currently registered in database. */
@@ -267,6 +272,7 @@ main(int argc, char **argv)
 	}
 
 out:
+	xbps_release_repolist_data();
 	xbps_release_regpkgdb_dict();
 	if (rv != 0)
 		exit(EXIT_FAILURE);