Error message change in SanityCheck.h

Marlin/SanityCheck.h

   #if !HAS_FIL_RUNOUT
     #error "FILAMENT_RUNOUT_SENSOR requires FIL_RUNOUT_PIN."
   #elif DISABLED(SDSUPPORT) && DISABLED(PRINTJOB_TIMER_AUTOSTART)
-    #error "FILAMENT_RUNOUT_SENSOR requires SDSUPPORT."
+    #error "FILAMENT_RUNOUT_SENSOR requires SDSUPPORT or PRINTJOB_TIMER_AUTOSTART."
   #endif
 #endif