Add valid() to recovery.info

Marlin/src/gcode/feature/powerloss/M1000.cpp

@@ -41,7 +41,7 @@ inline void plr_error(PGM_P const prefix) {
   #if ENABLED(DEBUG_POWER_LOSS_RECOVERY)
     DEBUG_ECHO_START();
     serialprintPGM(prefix);
-    DEBUG_ECHOLNPGM(" Power-Loss Recovery Data");
+    DEBUG_ECHOLNPGM(" Job Recovery Data");
   #else
     UNUSED(prefix);
   #endif