- execv(cmd[0], (char * const *) cmd);
- log_error_errno(errno, "Failed to execute %s tool: %m", cmd[0]);
+ assert(k < ELEMENTSOF(cmd));
+
+ r = invoke_callout_binary(cmd[0], (char * const *) cmd);
+ log_error_errno(r, "Failed to execute %s tool: %m", cmd[0]);