Do not add empty policies

Policy allocation failure is non-fatal

sway/commands.c

@@ -608,10 +608,10 @@ struct cmd_results *config_commands_command(char *exec) {
 	}
 	if (!policy) {
 		policy = alloc_command_policy(cmd);
-		if (!policy) {
-			sway_abort("Unable to allocate security policy");
+		sway_assert(policy, "Unable to allocate security policy");
+		if (policy) {
+			list_add(config->command_policies, policy);
 		}
-		list_add(config->command_policies, policy);
 	}
 	policy->context = context;
 

sway/security.c

@@ -152,10 +152,10 @@ struct feature_policy *get_feature_policy(const char *name) {
 	}
 	if (!policy) {
 		policy = alloc_feature_policy(name);
-		if (!policy) {
-			sway_abort("Unable to allocate security policy");
+		sway_assert(policy, "Unable to allocate security policy");
+		if (policy) {
+			list_add(config->feature_policies, policy);
 		}
-		list_add(config->feature_policies, policy);
 	}
 	return policy;
 }