Use user supplied origin name for extension.partialcone instead of

hardcoded value.

Signed-off-by: Xin Li <[email protected]>

Author: delphij

builtin/clone.c

@@ -1220,7 +1220,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
 			remote_head_points_at, &branch_top);
 
 	if (filter_options.choice)
-		partial_clone_register("origin", &filter_options);
+		partial_clone_register(option_origin, &filter_options);
 
 	if (is_local)
 		clone_local(path, git_dir);