Use new error handling in the example network code

examples/network/git2.c

@@ -31,7 +31,7 @@ int run_command(git_cb fn, int argc, char **argv)
 	// Run the command. If something goes wrong, print the error message to stderr
 	error = fn(repo, argc, argv);
 	if (error < GIT_SUCCESS)
-		fprintf(stderr, "Bad news:\n %s\n", git_lasterror());
+		fprintf(stderr, "Bad news:\n %s\n", git_error_last()->message);
 
 	if(repo)
 		git_repository_free(repo);