Make xbps_callback_array_in_dict() return a bool.

The func cb accepted also returns a bool now.

--HG--
extra : convert_revision : 1adf9a54e111f5d7f3dd78a829c3cf680d15f769

utils/xbps-pkgdb.c

@@ -291,8 +291,9 @@ main(int argc, char **argv)
 			usage();
 
 		dbdict = prop_dictionary_internalize_from_file(dbfile);
-		xbps_callback_array_iter_in_dict(dbdict,
-		    "packages", xbps_list_pkgs_in_dict);
+		if (!xbps_callback_array_iter_in_dict(dbdict,
+		    "packages", xbps_list_pkgs_in_dict))
+			exit(EINVAL);
 
 	} else if (strcmp(argv[1], "version") == 0) {
 		/* Prints version of an installed package */