fw_att_control: another ugly way to prevent a newline

src/modules/fw_att_control/fw_att_control_main.cpp

@@ -1149,6 +1149,9 @@ int fw_att_control_main(int argc, char *argv[])
 			err(1, "start failed");
 		}
 
+		/* check if the waiting is necessary at all */
+		if (att_control::g_control == nullptr || !att_control::g_control->task_running()) {
+
 			/* avoid memory fragmentation by not exiting start handler until the task has fully started */
 			while (att_control::g_control == nullptr || !att_control::g_control->task_running()) {
 				usleep(50000);
@@ -1156,7 +1159,7 @@ int fw_att_control_main(int argc, char *argv[])
 				fflush(stdout);
 			}
 			printf("\n");
-
+		}
 		exit(0);
 	}