Merge remote-tracking branch 'origin/kill2' into _temp_error

Marlin/temperature.cpp

       SERIAL_ERROR_START;
       SERIAL_ERROR((int)e);
       SERIAL_ERRORLNPGM(MSG_INVALID_EXTRUDER_NUM);
-      kill();
+      kill(PSTR(MSG_KILLED));
       return 0.0;
     }